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When to close a parasol: the wind figure you should use

RulesOctober 20267 min read
A square parasol being closed on a patio while trees bend in the wind

Close a parasol above about 25 km/h, about 16 mph, and whenever you leave it unused. A heavy base does not change that. Opal's 25 mph is a different number.

VOUNOT 2.5 × 1.2 m telescopic awning
VOUNOT 2.5 × 1.2 m telescopic awning
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The canopy is tugging the pole, the plates are ticking on the slabs, and you are trying to decide when to close a parasol without a number you trust. Makers print a speed. A heavy base makes that speed feel optional. It is not.

Products Compared put the Brollies and Parasols usage PDF next to Umbrosa's wind note and the Met Office storm advice on 16 October 2026. We did not measure your patio. The VOUNOT 2.5 × 1.2 m telescopic awning is the clamp awning in our standing set, about £64.99, and the listing prints no wind class. A purchase through our links can earn a commission at no extra cost to you.

In short

Close a parasol above about 25 km/h, about 16 mph, and close it when you leave, including overnight. Store it above 35 km/h if you are following the Brollies PDF. A heavy base does not replace that close. Opal's 25 mph is a higher, different figure. On a roof, the coast, or any exposed site, close the shade whenever it is unused.

The number makers print

Brollies and Parasols say to close the parasol over 25 km/h and to store it over 35 km/h. Umbrosa say close from 25 km/h, also written as 16 mph and Beaufort 4. Their scores assume a fixed mount in a wind tunnel. A plastic base, a table hole, or a balcony clamp is a weaker anchor. Use 25 km/h as the moment to close, and assume your setup reaches trouble earlier.

Twenty-five kilometres an hour is about 16 miles an hour, a breeze that moves small branches. Twenty-five miles an hour is stronger. Opal's base article says close above about 25 mph. This page uses 25 km/h as the earlier close.

No parasol British Standard turns 25 km/h into a legal wind class. BS EN 581 covers outdoor tables and seats, and it warns that a table hole may not hold a parasol. The AKTIVE 61151, a 175 cm square in our square parasol comparison, prints no wind class. A review on that page, from outside the UK, says wind broke the side bases. That is one comment, not a UK test. If the canopy is swaying, close it.

Why a heavy base does not change it

The base stops the pole walking. It does not stop the cloth being a wing. Plia and Opal talk about 80 to 100 kg for a 3 m cantilever because the arm is a lever. That weight is for ordinary use, not permission to leave a 3 m square open at 40 km/h. Nova Outdoor Living describe wind damage as the failure you prevent by closing the parasol. A tilted canopy shows more cloth to the wind, so tilt in calm air and close it when the breeze picks up.

A shell rated 80 kg with sand can sit nearer 60 kg with water. Christow print that pair for the same four shells. You can think the base is heavy and still be light. Even a genuine 80 kg does not change the close rule. The how to weigh down a parasol article is the fill and the pole diameter. This article is when you stop trusting the fill.

Overnight, storms, and exposed sites

Nova say never to leave a traditional parasol open overnight, and to close it when it is unattended. A still evening is not a forecast for the small hours. A Met Office storm warning is separate from the 25 km/h line. Secure the parasol, and a base that can slide, so furniture is not blown into windows and doors. Do that before the tiles start to lift. Securing furniture is not a wind rating the listing never printed.

Poggesi say to close parasols on exposed, roof, and coastal sites whenever they are unused. A roof terrace and a balcony facing the sea are that list. A sheltered side passage can wait for the 25 km/h signs, and you still close it when you leave. After a gale, check ribs and screws, which is the calendar in how often to check a parasol.

Sails and awnings

A shade sail has no runner to pull down. Wind loads the D-rings and the wall. If the cloth is flapping, ease the tension or take it off. A sail left up because it is meant to stay up is how fixings pull out of mortar. Our sun sail comparison is the cloth, not a wind certificate.

A standing awning should be wound in when the wind rises. The standing awning comparison includes the VOUNOT, 2.5 m by 1.2 m, with a manual crank and poles listed at 210–320 cm. It is 4.3 from 965 amazon.co.uk reviews, and no wind class is printed. United Kingdom reviews say to wind the cloth in, and that the side arms can lift if the cloth is slack. A crank that binds is a stop, not a cue to force it. Use 25 km/h as a fair trigger to wind in.

When a fitter should take over

Bolt a deck plate or set an in-ground socket only if you know the structure, or hand it to a fitter. A roof you do not own and a balcony slab you must not pierce are not Saturday experiments. Umbrosa's tunnel scores belong to a fixed anchor. Even after a proper bolt, close the canopy in wind. The fixing holds the pole. It does not make the cloth immune.

Stop if an arm has bent, a weld has cracked, or the runner grinds. Close it and speak to the retailer. A fault in ordinary use, when you closed the canopy as asked, is a different conversation from damage after the cloth was left up in a named storm. At about 25 km/h, close it. Above 35 km/h, store it if you follow the usage PDF. Every night, close it. On a roof or the coast, close it whenever you are not under it.

Common questions

At what wind speed do I close a parasol?
Close it above about 25 km/h. Brollies and Parasols print that close, and they say to store the parasol above 35 km/h. Umbrosa use the same 25 km/h, about 16 mph or Beaufort 4, from a fixed mount in a wind tunnel. Your patio is not that tunnel. If the canopy is swaying, close it before you check the forecast.
Is 25 km/h the same as 25 mph?
No. Twenty-five kilometres an hour is about 16 miles an hour. Opal says close above about 25 mph, a stronger wind and a different sentence. Use 25 km/h as the earlier close. Treat 25 mph as one retailer's later line. A sheet that says never open above 5 mph is one maker's rule, not the Brollies figure.
Does a heavy base let me leave it open?
No. The base holds the pole. The cloth is still a sail. An 80 kg cross base can stop the stand walking and still let a rib bend. Nova say wind damage is the failure you prevent by closing the parasol. A non-UK review of the AKTIVE 61151 says wind broke the side bases. Ballast is not a wind class, and that listing prints none.
What about overnight?
Close it. Nova say not to leave a traditional parasol open overnight, and not to leave it open when you are away. A still evening is not a forecast for 3am. The Met Office wants garden furniture secured in a storm so it does not hit glazing. An open canopy is furniture with a wing.
What about a roof terrace or the coast?
Close it whenever the shade is unused. Poggesi say that for exposed, roof, and coastal sites, and a high city balcony counts. The 25 km/h line is the general close. Unused means closed where a fallen pole can leave the building. A heavy garden base does not become a storm rating on that roof.
Do I close a shade sail the same way?
You do not fold a sail with a runner. Ease the tension or take the cloth down so the wind is not loading the eyes and the wall. A taut sail pulls on the fixings. A parasol left open bends ribs. Wind a standing awning in on the same idea. A clamp and a crank are not a wind class.
Peter F.
DIY & toolsamazon.co.uk listings

Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.

Updated: October 2026

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