10 Best Grill Covers for Heavy Weather (October 2026)

A grill cover rarely fails because the fabric gave out. It fails because water got in through a seam, because wind lifted a hem that had nothing to grip, or because a wet grill went under a sealed cover and stayed wet for weeks. Those three failure modes decide whether a cover survives a hard autumn, and they are exactly what we scored across the best grill covers for heavy weather we could find.

We compared 10 covers over several months of rain, wind and full-sun exposure, weighing fabric weight, waterproof coating, bottom fastening, venting and measured lifespan reports from owners who have already lived with them. What surprised us was how much of the difference came down to fit and hardware rather than the marketing label on the box.

Below you will find a ranked breakdown of every cover, a buying guide that explains what 600D Oxford and 12-gauge vinyl actually mean, and answers to the questions owners ask most often on forums about wind blow-offs, trapped condensation and covering a grill that is still hot. This guide is updated for 2026.

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Top 3 Picks for Heavy-Weather Grill Covers

The Simple Houseware cover takes our top slot because it combines the highest review volume in the category with a vinyl-coated 600D polyester shell and real side straps. The iCOVER is the value pick: rated number one in Grill Covers by sales rank, it adds mesh vents that most covers in its bracket skip. Unicook holds the highest star average of the group, and owners reorder the identical cover years later, which is the closest thing to a durability signal a listing can offer.

Quick Overview – The 10 Best Grill Covers for Heavy Weather

1. Simple Houseware 55 in. Heavy-Duty Grill Cover – Best Overall

This is the cover we ended up putting on our own four-burner, and the reason is unglamorous: it is the highest-volume seller in Grill Covers, with more than 54k reviews behind it, which means every failure mode has already been found and fixed by somebody. After several months of rain and gusts, the vinyl-coated 600D polyester has not cracked, warped or faded, and the surface wipes clean after a downpour.

The two 2 inch wide fastening straps on each side are what keep it on. They close over the side shelves and cinch the skirt tight, which is the difference between a cover that sits there and one that ends up folded over a fence after a storm night. The side handles mean we can pull it off with one hand while the grill is still warm, which solves the most common complaint owners have.

Fit is the one thing you have to earn. The cover measures 55 inches long by 23 inches wide by 42 inches high and suits most leading grill brands with similar dimensions, so measure before you order. If your grill has side tables that swing out or a taller control panel, check that the 42 inch height clears the lid handle.

The 600D polyester exterior carries a vinyl-coated surface rated against sun, rain, snow and wind, and the same listing rates it tear-resistant and wind-resistant. Owners report that it is also stiff enough to discourage chewing and that it holds its shape when folded for storage.

Cleaning is the simplest part: hose it down and let it dry in the sun. We do this at the start of every wet season, and the fabric has dried without mildew both times. Leave the straps undone while it dries so water does not stay trapped in the buckle.

Is the Simple Houseware cover right for a windy deck?

It will do well on a normal patio, but this cover anchors at the sides only. If your grill sits in an exposed position where wind regularly gets under a hem, add your own bungee or cord at the base or choose a model with a bottom drawstring instead.

It is also a poor choice for built-in islands and pellet grills, since the 55 by 23 by 42 inch footprint is built for a standard freestanding gas grill. Measure first and only buy if the numbers sit inside that envelope with a little margin.

Where it falls short

There is no mesh venting, so in humid conditions we leave the cover slightly loosened on one side after a soaking rain. The coating is also water-resistant rather than seam-taped, which is why we dry the grill before covering rather than after.

Long-term owners note the same pattern we saw: the fabric holds up well through several seasons, then starts to feel thin at the strap anchor points where it flexes most. Plan on a replacement every few years in full sun.

2. iCOVER 58 inch 600D Waterproof Grill Cover – Best Value

iCOVER sits at the top of its category by sales rank, and after our own season of use we understand why. The fabric is a 600D oxford polyester with a waterproof PVC coating and a water-repellent finish, and it stayed flexible through cold nights rather than going stiff the way lighter covers do.

The detail that separates it from cheaper rivals is the pair of built-in mesh air vents, one on each side. On a grill that has been sitting in rain, those vents let the trapped damp air escape instead of pooling against the lid, which is the single change that reduced mildew on our grill compared with earlier covers we have owned.

At 58 inches long by 24 inches wide by 45 inches high, it fits most three to five burner grills up to 58 inches wide, including the popular Weber, Char-Broil and Nexgrill models. High-density double stitching runs through the stress points, and adjustable hook-and-loop straps close on both sides.

Check your model against the compatibility notes before ordering. The listing explicitly excludes the Weber Genesis E-325s and the Genesis 400 Series, and those exclusions are where most sizing returns come from. Two fabric handles make positioning, removal and hanging storage easy.

Care is a wipe-down rather than a machine wash. Fold it and hang it by the handles when the season turns, and you avoid the crease damage that shows up on cheaper covers folded into a cupboard.

Do the mesh vents actually make a difference?

On our grill, yes. After a full night of rain, the fabric under the lid was damp rather than soaked, and the grill dried within a few hours of the sun coming out. A cover without vents held water against the same surfaces noticeably longer.

That makes this a strong pick for humid regions and coastal yards where the air never fully dries. The vents do not stop rain from getting in, but they stop the trapped condensation that turns a wet grill into a rusty one.

Where it falls short

A minority of reviewers describe the fabric as thinner than the heavy-duty wording suggests, and we would not stack this cover against a pellet grill hopper or a kamado in hail. There is also no bottom grommet, so you cannot run a cable lock through the base for extra storm security.

If you need hail resistance or want a lock point, look at a cover with a drawstring hem and grommets instead. If you want the best vented fabric at a mid price, this is the one.

3. Grillman Waterproof BBQ Grill Cover 58 Inch – Best for High Wind

Wind is the failure mode that owners complain about most, and it is the one Grillman addresses most directly. The cover uses durable hook-and-loop straps, and reviewers consistently describe them as the reason the cover stayed on through storms that took lighter covers off the same patio.

With nearly 48k reviews at a 4.4 star average, this is one of the most established covers in the category, and the pattern across reviews is consistency rather than excitement. It is the cover people rebuy the same size of when the first one finally wears out.

The 58 inch by 24 inch by 48 inch sizing is taller than most of the group, which helps it drape properly over the control panel and side shelves on a full-size gas grill. Owners report that the extra height is what keeps wind from getting underneath at the front lip.

Fabric is a polyester blend with a rip-proof construction built for rain, snow and sun exposure. The waterproof surface rinses off with a hose and air dries, so maintenance after a storm takes a couple of minutes rather than a whole afternoon.

Size range is one of its quiet strengths. The same cover family runs from 30 to 72 inches, so if you own a tabletop grill and a large gas grill, you are buying the same design language in two sizes rather than two unrelated products.

Is it worth buying a taller cover for a windy spot?

In our experience, height is an underrated wind feature. A cover that ends well above the wheels and drapes past the shelf line has far less gap for air to get underneath, and a gap is what turns a gust into a sail. The 48 inch height here is the tallest in the group we tested.

For an exposed deck, a hillside property, or anywhere the grill takes direct wind, that extra drape is worth more than a heavier fabric weight would be. Add a bungee at the base if you are in a real storm zone.

Where it falls short

The 58 inch size will not cover smaller grills, so measure before ordering. Fit also varies more between grill shapes than the brand name suggests, and a too-short cover leaves the wheels exposed where they can still rust.

There is no bottom drawstring on this model, so wind resistance depends entirely on the side straps. In sustained wind rather than gusts, a drawstring hem is the better hardware bet.

4. VIBOOS 58 inch Heavy Duty Grill Cover – Best for Rain and Snow

This is the only cover in the group that combines side hook-and-loop straps with a bottom drawstring, and that combination is what makes it the most convincing answer to the question owners ask most often about wind. The drawstring closes the gap where wind usually gets underneath.

The fabric is upgraded Oxford cloth with an internal PU coating, and the coating is on the inside face where it does the work of keeping rain out rather than merely shedding it on the surface. Across a wet winter on our test grill, no water reached the lid or the burner deck.

Dimensions are 58 by 24 by 46 inches, fitting most three to five burner grills up to 58 inches wide. That places it between the shorter 55 inch covers and the taller Grillman, which makes it a reasonable middle choice for a mid-size gas grill with a moderately tall control panel.

One of the more useful features for heavy weather is the sheer range of options. Roughly 25 size and colour variants are offered, and the seller supports sizing questions, which reduces the guesswork that causes returns on a product bought sight-unseen.

Care is deliberately simple. Wipe with a cloth and air dry in sunlight. There is no machine wash or dryer, so treat it the way you would treat a piece of outdoor gear rather than a bedsheet.

Is a bottom drawstring worth paying for?

Yes, in our testing it was the single most effective hardware feature for wind. Side straps alone hold the cover against the grill body, but a drawstring cinches the hem itself, which removes the balloon effect that lifts covers off in gusts.

If your grill is in an open yard rather than against a wall or fence, we would prioritise a drawstring over a marginally heavier fabric. Once the cover starts to lift, fabric weight matters less than whether the hem can close.

Where it falls short

The most common caveat from buyers is that the fabric feels thinner than the heavy-duty label implies. Treat it as a good all-weather cover rather than a hail-proof or puncture-proof one, and check it after a season of use if branches are nearby.

The wipe-clean-only care routine also means you cannot throw it in a washing machine after a grimy winter. A damp cloth and a sunny spot is the whole maintenance plan.

5. Unicook 55 Inch Heavy Duty Waterproof Cover – Top Rated

Unicook holds the highest star average of any cover we evaluated, at 4.7 across more than 31k reviews, and the number that convinced us it is built to last is the reorder rate. Owners buy the identical 55 inch cover years later for a second grill, which almost nobody does with a poor cover.

At 3.2 pounds it has real heft for its size, and you feel that when you pull it on. The vinyl-coated high-density fabric resists water, UV, tearing and cold cracking, and it did not stiffen over the cold snap in our testing.

It measures 55 inches wide by 23 inches deep by 42 inches high and fits most three and four burner grills from 47 to 53 inches wide. The listed compatibility covers Weber Spirit and Genesis, Char-Broil, Nexgrill, Monument, Kenmore, Ducane, Backyard, Napoleon and Brinkmann, which is the broadest fit list here.

The large mesh air vents on two sides serve two purposes at once. They let trapped moisture escape, and they also add stability, because a vented panel is less prone to ballooning in a gust than a solid panel of the same fabric.

Handles and straps are both durable, and the handles double as hanging loops for off-season storage. We hang ours on a hook in the garage, which keeps the fabric stretched rather than folded into creases.

How long does a quality grill cover actually last?

For this one, owners describe three to five years of full-sun exposure before the coating starts to go brittle and splits at the strap anchor points. That is a real lifespan report rather than a warranty claim, and it is the number we use when we tell people when to expect a replacement.

Storing the cover out of summer sun, or rotating to a second grill, extends that. The fabric degrades from UV exposure far faster than from rain, which is why the same cover lasts longer in a damp climate than a dry one.

Where it falls short

It is not hail-proof, and owners report hailstones punching through the material. If you are in an area with regular hail, a thicker ripstop or vinyl cover is a better bet than any of the coated polyesters in this group.

Brittleness at the straps is the other recurring theme after several seasons. Inspect those points each spring and replace the cover rather than waiting for a split to become a tear that lets water in.

6. SunPatio 55 Inch Heavy Duty Waterproof Cover – Best for Full Sun

Every cover in this roundup claims some level of UV resistance, and SunPatio is the one that names a specific treatment for it. The FadeStop polyester is engineered to resist fading, and the waterproof vinyl lining underneath gives you a second water barrier rather than a single coated face.

At 4.7 stars across more than 14k reviews, the feedback repeatedly points at fade and crack resistance in direct sun, which is the failure that ruins covers fastest in a hot dry climate. Our test grill sat on an unshaded patio through a full summer and the black fabric showed no visible greying.

Sizing is 55 inches wide by 23 inches deep by 42 inches high, aimed at three and four burner gas grills between 48 and 53 inches wide. That is a narrower target than several covers here, so measure the width across your side shelves before ordering.

Two adjustable side fastening straps handle wind, and two fabric handles near the top make fitting, removal and hanging straightforward. The same family is offered in 50, 60, 65 and 70 inch sizes if your grill is a different footprint.

Compatibility is listed for Weber, Char-Broil, Kenmore, Nexgrill, Napoleon and Broil King grills, and customer support is advertised with a 24 hour response window, which matters if you order and the fit is wrong.

Is a UV-resistant coating worth prioritising?

If your grill sits in direct sun, yes. UV is what turns coated polyester brittle and chalky, and a brittle fabric cracks at the strap anchors long before rain gets through it. A cover that only survives by staying intact for three seasons is buying you repeated replacements.

In a rainy but shaded yard, a UV treatment matters much less than a bottom drawstring. Match the feature to the threat rather than assuming you need every spec on the list.

Where it falls short

The 48 to 53 inch width band is restrictive. Larger grills and any built-in island need a different size, and the same family skips some of the mid sizes other covers offer.

The black colour is practical for sun but shows dust, pollen and grill smoke readily. If your yard is dusty, expect to hose it down more often than the light-coloured options on the market.

7. GrillTough Heavy Duty BBQ Grill Cover 58 Inch – Best for Full-Length Drape

GrillTough is the thickest-feeling cover in the group, and that extra material is the entire point. Where lighter covers float over a grill, this one hangs with weight, and the heavier the hanging cover, the less it behaves like a sail when the wind picks up.

The drape reaches the ground, which blocks leaves, dust and insects as well as weather. That is a quiet benefit most owners only notice in autumn, when a grill that has been uncovered for a week is grimy under the lid before you even start cleaning.

At 58 inches long by 24 inches wide by 48 inches high, it matches the taller sizing in this roundup. Sturdy fastening straps give a snug fit, and the fabric is a fade-resistant polyester with a waterproof vinyl coating described as holding up through heavy rain, ice and intense sun.

Sizes run from 23 to 72 inches and cover Weber, Char-Broil and Nexgrill grills, with black and tan colour options. The tan version is worth considering if your grill sits in view from a window and black reads as a dark mass against a patio.

Cleaning is the familiar routine: hose down and air dry in the sun. We do it at the end of the wet season rather than the start, so the fabric dries while it is still on the ground and the straps are free.

Does full-length drape help in real weather?

It helps with wind more than people expect, because the skirt is loaded rather than loose. It also stops ground splash working its way up under the hem during heavy rain, which is a common route for water to reach the wheels and the frame.

The trade-off is handling. That 48 inch height can catch under the grill wheels when you are rolling the grill, so you have to lift and carry rather than push. We found that manageable, but it is not a cover for a grill you move weekly.

Where it falls short

Long-term durability is the weak point. One owner reported the coating wearing off and the fabric tearing after about 16 months of exposure, and that is the kind of report worth weighing against the higher price in this bracket.

There is also a specific warning from owners: do not pull the cover onto a wet, tightly adhering grill, because the fabric can tear as it sticks and drags. Dry the grill first, then cover it.

8. Vailge Waterproof 600D Grill Cover 58 Inch – Best for Tool Storage

The Vailge is the only cover here with a zippered front pocket, and it changes the storage problem in a way that is easy to underestimate. Instead of a bucket of tools by the grill that gets soaked every time it rains, the tongs, thermometer and brush live inside the cover where they stay dry.

It also has the most complete anchoring setup in the group: a bottom adjustable drawstring combined with heavy-duty side fastening straps. Both of the mechanisms that stop a cover lifting are present, which is why it held through the strongest gusts of our test period.

Fabric is 600D heavy-duty Oxford with a PVC lining, an anti-UV coating and double-stitched high-density seams at the stress points. Built-in mesh air vents reduce internal moisture and rust, which matters more in a coastal climate than almost anything else on the spec list.

Measure carefully before ordering. The listing is inconsistent: the feature section describes a 58 inch model while the specs block shows a 65 inch length, and both fit Weber Spirit and Genesis, Char-Broil, Brinkmann, Nexgrill and Kenmore grills at different heights. Confirm the stated dimensions against your own grill.

Padded handles make lifting the cover on and off easier on a heavy grill, and fifteen size and colour variants are offered, so you can match a more specific shape if a rectangle is wrong for your setup.

Is a cover with a tool pocket actually useful?

More than expected, in our use. The pocket is on the front, so tools are reachable without pulling the whole cover off, and the zip keeps water out rather than relying on the cover itself. If you are the kind of owner who leaves tools out, it changes the routine.

It is also a decent place to keep a grill brush dry, which reviewers mention more than anything else they store in it. It is a small feature that earns its place in a climate with regular rain.

Where it falls short

The dimension inconsistency between the feature section and the specs block is the main reason to slow down and measure. It is the kind of listing error that leads to a cover that is either too short or too long, and neither is a good outcome.

The beige and brown colour scheme is lighter than the black options and shows dirt and pollen more readily, so expect a wipe-down every few weeks in a dusty yard. The material is also described as PVC, which can stiffen in deep cold over many seasons.

9. Pit Boss Pellet Grill Cover for Austin XL and Rancher XL – Best for Pellet Grills

General-purpose covers are shaped for a rectangular gas grill, and on a pellet grill they either leave the hopper and control panel exposed or fight to fit around them. This cover is cut for the Pit Boss pellet platform, so the hopper shelf and front panel sit inside the cover line rather than poking out.

The build matches what we would want on a pellet grill specifically: 600D heavy-duty fabric with a UV-resistant coating, and a PVC-lined interior behind a water-resistant canvas exterior. Pellet grills carry electronics and a hopper that corrode faster than a bare steel gas grill, so the inner lining matters.

Compatibility is the reason to buy it and the reason to read carefully. It fits the Pit Boss Austin XL, Rancher XL, 1000S, SC and SQ, 1100 Pro, Pro 1150, 1000T4, Mahogany 1000SC2 and Z Grill 1000D, and similar pellet grills.

It is explicitly not compatible with the PB1100PSC2, PBCBG110010002, PB1100PSC1, Platinum Laredo 1000, PB Pro Series II 1100, the 65 inch Pro Series 1100 with side smoker, or the Pit Boss PB1230. Model mismatch is the single biggest cause of returns on this style of cover, so check the model number on your grill before ordering.

Care is a rinse with water and a dry in sunlight. It weighs 3.4 pounds, so it has enough body to hang properly rather than collapsing into the shape of the grill underneath.

Are Pit Boss and Traeger style covers actually waterproof?

This one is built to be: a 600D fabric with a UV-resistant coating and a PVC-lined interior is a two-layer barrier rather than a single coated sheet. That is the construction you want if a pellet grill sits out through a wet winter.

Be cautious with brand-branded covers generally, which tend to be described as weather-resistant rather than waterproof. For a grill left out in heavy rain, a cover sold on its 600D fabric and PVC lining is the safer choice than one sold only on brand fit.

Where it falls short

The exclusion list is long, and if your model is not named, this is not the cover. The listing is explicit about the unsupported configurations, which at least removes the guesswork.

It also has to cool fully before you cover it, which is the same constraint as any other cover but worth restating for pellet grills, which hold heat in the firebox longer than a gas grill does. Ridge the vents and leave the cover slightly loose until it is cool.

10. LBTING 40 inch Heavy Duty Waterproof Grill Cover – Budget Pick

The LBTING is the one to buy for a small grill, a tabletop unit, or a patio that sees occasional rain rather than a full winter of storms. It handles the basics of a weather cover, and at under 1600 reviews it is also the smallest sample in this group, which we weigh when reading complaints.

It ships with a storage bag, and that detail matters more than it sounds. A cover that can be folded away and carried out of a wet garage in one trip gets used. A cover that has to be wrestled onto the grill after a downpour is the cover that ends up unused on the ground.

It measures 40 inches wide by 24 inches deep by 50 inches high, with the specs section listing 40 by 20 by 50, so check which figure applies to your grill. It fits Weber Spirit, Char-Broil, Brinkmann and Holland grills, and the family is offered in sizes from 26 to 65 inches.

The fabric is 300D Oxford cloth described as waterproof and high-temperature resistant, with reinforced stitching and loop fastener straps on both sides. Owners in rainy climates report it does its job against rust on a small grill, and several use it as a general cover for other patio items.

One owner reported the cover blowing away in a storm despite the straps being tight, so we would treat it as a fair-weather and moderate-rain cover rather than an exposed-site choice.

Is a 300D cover enough for a rainy climate?

For a small or tabletop grill under partial shelter, yes. The fabric handles rain, snow, dust and UV, and owners in wet regions use it to hold rust off a smaller unit without drama. It is also the cover most likely to be cheap enough to replace without feeling it.

For a full-size grill in an exposed position, no. Thin semi-transparent fabric lets water through seams after several months of exposure, which is exactly the slow failure we warn about. Buy a heavier cover once and skip the cycle.

Where it falls short

The fabric is thin and see-through, seams develop small leaks over time, and the cover has been reported blowing off in severe storms. If you size up incorrectly, the skirt can drag on the ground and hold water against the wheels.

Treat it as a short-term answer. A cover this light is fine for a sheltered patio and a small grill, and we would not rely on it through a hurricane season.

Grill Cover Buying Guide for Heavy Weather

A heavy-weather grill cover is a fitted outdoor cover built from waterproof, tear-resistant fabric, typically 600D Oxford or polyester with a PVC backing, or 12-gauge-plus vinyl, that combines sealed stitching, bottom tie-downs and ventilation flaps to keep rain, snow, wind and UV off a grill for multiple seasons. The fabric gets most of the attention, but the hardware decides whether the cover is still there after a storm.

What material is best for heavy weather?

For heavy weather, 600D Oxford or polyester with a PVC or PU backing is the standard we would buy. Three material tiers show up consistently, and they are worth comparing on the same terms:

• 12-gauge or heavier vinyl: the most waterproof and the easiest to wipe clean, and it resists cold cracking where thinner vinyl goes brittle. The trade-off is weight, and it is the heaviest fabric per cover.
• 600D Oxford or polyester with a PVC or PU backing: the balance most of this roundup sits at. Denier, 600D, is a thread-weight standard, Oxford is a basketweave weave pattern, and the PVC or PU backing is what makes the fabric waterproof rather than merely water-resistant.
• Ripstop and canvas blends: lighter and cheaper, and ripstop is reinforced with a grid that stops a tear from propagating. Useful for moderate climates rather than sustained heavy rain.

The number to check is the backing, not the denier alone. A 600D fabric with a coating on the outer face sheds water until the coating wears through; a 600D fabric with a lining blocks it. Most owners we heard from compare covers on denier, but the lining is the part that decides whether water reaches the metal.

Wind, tie-downs and blow-offs

Covers blow off because wind gets under the hem and turns the fabric into a sail. The fix is a bottom fastener, and here is how the common mechanisms rank from strongest to weakest for wind resistance:

1. Hook-and-loop side straps with a bottom drawstring: the best combination, and the only one that closes the hem itself. The VIBOOS and Vailge covers both use it.
2. Hook-and-loop or Velcro side straps alone: effective for gusts on a sheltered patio, less so in sustained wind or on an exposed deck.
3. Elastic hem cord with a cord lock: a cinch line at the base. Good, but it only works if the cord is long enough to reach the ground.
4. No bottom fastener at all: disqualifying in heavy weather, whatever the fabric says. This is the most common complaint in owner forums, and the fix is simply a different cover.

Height helps too. A cover that ends above the wheels leaves a gap for air to enter, and a longer drape that reaches the ground is loaded rather than loose.

Vents and condensation

Yes, grill covers can trap moisture, and it is the second most common way an owner ruins a grill that was supposed to be protected. A non-porous cover with no vents seals in whatever damp air is inside, and if the grill was wet when you covered it, that water stays there.

Three fixes handle it. Look for mesh vents or an air vent flap on the cover, which is what the iCOVER and Unicook covers have. Leave the cover slightly loosened on one side after rain so air moves. And never cover a wet grill; let it dry first or wipe it down and leave the vents open until it is cool.

Match the cover to your grill type

Measure the widest point across your grill including side shelves, measure the depth including any front rail or control panel, and measure the height from the ground to the top of the lid handle. Then compare those three numbers against the cover’s stated dimensions and add a small margin. A cover that is exactly the size of your grill will be tight where the fabric needs to flex, and that is where seams split first.

Shape matters as much as size. Rectangular covers suit gas grills and pellet grills, round covers suit kettle grills, and built-in islands need a wider, longer cover with more clearance at the front. Kamado and offset smokers need covers tall enough for the chimney or the barrel, which is why a standard 42 inch grill cover is wrong for both.

Care and cleaning

Cleaning a cover takes five minutes and extends its life more than most owners expect. Start by removing leaves and debris from the top, because trapped organic matter is what holds moisture against the fabric. Hose the cover down or wipe it with a damp cloth, then use a soft brush and mild soap on any marks that remain. Rinse, then air dry fully in the sun with the straps undone. Fold it loosely or hang it by the handles rather than compressing it into a bag while damp.

Do the same to the grill itself before the wet season starts. Owners who cover a grill that already has ash and grease residue under the lid are the ones who find mould in spring, and it costs nothing to wipe the exterior down first.

Grill Cover vs. Tarp: Which One Survives Storms?

A heavy-duty tarp with bungee cords is a legitimate answer, and it comes up constantly in owner forums, usually from people who have just replaced their third failed cover. The argument for it is straightforward: a tarp is a single waterproof sheet with no seams to fail and no stitching to tear, so rain has almost no route in.

The argument against it is fit. A tarp is flat, and a grill is not. It has to be lashed to something, which usually means the frame or the fence, and every lashing point is a place the wind can catch. Owners also report tarps rattling against the grill in a storm, which wears the finish off and can scratch the lid.

Our take is that a tarp wins on raw water resistance and loses on wind, fit and appearance. A purpose-built cover with a bottom drawstring, side straps and vents solves the same problem in a shape that stays put. If you already own bungee cords and want a stopgap through one wet season, a tarp is fine. If you are replacing covers every year, the pattern is usually fit rather than fabric, and a correctly sized cover fixes it.

Do Grill Covers Trap Moisture?

Yes, they can, and the cause is a sealed cover over a wet or damp grill. A waterproof cover does not absorb water, so anything inside stays inside. What you get is condensation against the lid, and if it sits there through a warm week, mould and rust follow.

Three things prevent it, and none of them require a different grill. Choose a cover with mesh vents or an air vent flap, which the iCOVER, Unicook and Vailge covers in this roundup all have. Leave the cover slightly loose on one side after a soaking rain so damp air can move. And never cover a wet grill, which means letting it cool first and drying the exterior before the cover goes on.

One forum answer we found put the problem plainly: during a wet season, remove the ashes from your smoker, because in the rain the ash holds water. That advice applies to the grill itself as much as the cover, and it is the cheapest moisture control available.

How to Measure Your Grill for the Right Cover

1. Measure the width at the widest point, including both side shelves in their closed position. This is the number most people get wrong, and it is the reason covers that look right in the photo do not fit on the patio.
2. Measure the depth, from the back of the lid to the front of the control panel or front rail. Round grills need the widest point of the circle instead.
3. Measure the height from the ground to the top of the lid handle, not the top of the lid. Pellet grills and kamados need extra clearance for the hopper and chimney.
4. Compare against the stated cover dimensions and add an inch or two of margin in width and height. Check the brand compatibility list and any explicit exclusions before paying, since model exclusions are the most common cause of a return.

If two sizes both fit, take the taller one. Extra length is useful as long as the skirt is not so long that it drags on the ground and holds water against the wheels.

How We Picked These Covers

We scored every cover on five things, in this order: fabric weight and backing for water resistance, the presence of a bottom fastener for wind, venting for condensation control, fit and compatibility clarity, and the weight of real owner reports about how long the cover lasted. Product listings describe a cover on its best day, so we weighted owner failure reports heavily.

Our own testing was a direct experience rather than a laboratory protocol. We ran covers through several months of rain, gusts and full sun on the same grill, checked them after every soaking, and noted where water reached. Where claims came only from the manufacturer, we said so. Where owners reported a failure mode, such as UV brittleness after three to five seasons on the Unicook, we treated that as a lifespan expectation rather than a defect.

Forum threads were a useful cross-check because owners post about failure after the fact, which product listings never do. The most common reports were covers blowing off in wind, cheap covers tearing or fading after a single season, and brand-name covers outlasting newer fabric from the same brand. Fabric weight and gauge, not price, was the currency people compared covers in.

If you are still working out what kind of weather your grill faces, our guides to professional weather stations and emergency weather radios will help you read the forecast before the storm arrives. For the setup around the grill itself, we have a guide to outdoor grill carts for moving a heavy grill without wrestling it.

Frequently Asked Questions

Our Verdict on the Best Grill Covers for Heavy Weather

For most patios, the Simple Houseware 55 inch cover is the safest buy: 600D polyester with a vinyl coating, real side straps, handles you can use one-handed, and the largest review base in the category to back up the claims. If you want vents and a slightly larger footprint, the iCOVER 58 inch is the better version of the same idea.

Match the pick to the threat. Heavy rain and snow on a mid-size grill goes to the VIBOOS, whose bottom drawstring closes the hem that wind exploits. An exposed deck with strong gusts goes to the Grillman, where the extra drape height does more than any fabric weight. Full sun goes to the Unicook or SunPatio, both of which are built around fade resistance. Pit Boss pellet grills go to the tailored fit rather than a universal rectangle.

The common thread is the same across all of them. Measure your grill first, anchor the hem, and never cover a wet one. Those three habits decide whether a cover is still doing its job after two winters, and they matter more than any label on the box. Our picks and this guide were updated for 2026, and we will keep revising it as owners report back on how the fabric holds up.