Home
Weather London
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
Career
Home / Editor's Pick /

All year UV safety: Don't be fooled by overcast skies

All year UV safety
Don't be fooled by overcast skies

Sun shines through  cloudsEven on cloudy days, UV-light can still break through.

Overcast conditions usually don’t inspire the need to check UV levels, but at any time of the year, precautions should be taken.

Believe it or not roughly 90% of UV light can cut through clouds, it can even bounce off puddles and snow so don’t assume it is safe to head out without sunscreen just because it’s a grey day.

You may also assume that it is safe if it is cold. UV rays have nothing to do with the heat emitted by the Sun. It can be in the minus temperatures and still be dangerous due to UV.

When is it safe?

The UV-Index rating makes it easy to see when protection is required. Any day with an index of three or higher you should use sunscreen.

You can check the UV-Index rating near you daily within your local forecast information on the Weather & Radar app.

App tip: Clouds on the WeatherRadarread more
Weather & Radar editorial team
This might also interest you
Split image with Cromer Pier at sunset on the left in soft orange-blue tones and a moonlit Canterbury church with dramatic clouds on the right, lit by a streetlamp.
Sunday, 5 April 2026

Your weather - Your shots

Spring captured after the clock change
Split weather graphic showing a low-pressure system with tight isobars over the UK on the left and a wind map on the right with strong gusts up to 90 mph, plus a windsock warning icon.
Thursday, 2 April 2026

Gales and blizzards

Storm Dave disrupts Easter weekend
Left: Weather radar from Monday evening – Right: The corresponding wind radar
Wednesday, 1 April 2026

Air quality dropping

Saharan dust coats the Canaries
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwittertikToklinkList