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 /

    Check our UV Index: Staying sun safe this summer

15:00
4 April 2023

Check our UV Index
Staying sun safe this summer

sun flare

With summer in full swing, make sure your skin is protected from the increasing solar radiation.

Across summer the UV index in the UK often reaches moderate levels daily beneath unbroken sunshine. Even on a cloudy day, UV levels can still be high with UV able to be reflected and scattered in the clouds.

Especially after the dark winter months, the skin often does not yet have sufficient self-protection. The strength of the sun in spring is also often underestimated. During this time of the year, the sun is as strong as it is in mid-August.

There are three types of UV rays: UVA, UVB, and UVC. UVC is the most dangerous form of UV radiation, but luckily this is absorbed by the atmosphere before it reaches Earth.

UVB penetrates the top layer of the skin and leads to sunburn. UVA is the most potent source which we are exposed to all year long. It can pass through windows and clouds and penetrates deep into our skin, leading to ageing and increasing our risk of skin cancer.

Because of the dangers associated with increased levels of UV, particularly in the spring and summer months when UV radiation is at its strongest, the UV Index was created. The higher the UV Index, the stronger the UV radiation and faster the skin will burn.

Across the UK and Ireland, UV levels tend to reach 7 on the hottest days. At this level, there is a risk of burning within 30-60 minutes. As we spend more time outside, be sure to check the UV Index level near you inside our app!

Weather & Radar editorial team
More on the topic
Extreme heat in Eastern Europe. Peaking above 40°C. . . Tuesday, 4 August 2026
Split image showing a temperature map of central Europe with widespread extreme heat, temperatures reaching 39°C, and a heat warning symbol on the left, alongside people walking through cooling mist in hot summer weather on the right.
Tuesday, 4 August 2026

Peaking above 40°C

Extreme heat in Eastern Europe
More comfortable night's sleep. Overnight low drops. . . Wednesday, 5 August 2026
Morning temperature map of the UK and Ireland showing cool conditions, with temperatures ranging from 7°C in South Wales to 13°C in southeast England. Ireland records 9–12°C, while much of England and Wales is between 8°C and 10°C. A blue thermometer icon highlights the cooler weather.
Wednesday, 5 August 2026

Overnight low drops

More comfortable night's sleep
Japan braces itself for Typhoon Dolphin. Landslides feared. . . Wednesday, 5 August 2026
Weather map showing a typhoon south of Japan. The centre of the storm is over the Pacific and is moving westwards. The coloured wind fields indicate its high intensity.
Wednesday, 5 August 2026

Landslides feared

Japan braces itself for Typhoon Dolphin
All weather news
This might also interest you
Turbulent weather in the Canary Islands. Storm and rain. . . Friday, 12 December 2025
Weather graphic showing rain and wind fields over the Canary Islands and a central warning symbol.
Friday, 12 December 2025

Storm and rain

Turbulent weather in the Canary Islands
New records for England and Wales. Broken again tomorrow?. . . Thursday, 25 June 2026
Temperature map of southwest Britain on 25.06 showing extreme heat across southern Wales and southwest England, with Bute Park in Cardiff highlighted at 34.2°C and Yeovilton at 36.4°C amid widespread deep red heat zones.
Thursday, 25 June 2026

Broken again tomorrow?

New records for England and Wales
Seasonal warmth between spring thunder. Your weather - Your shots. . . Sunday, 19 April 2026
Split image showing coastal sunset with layered lenticular clouds over rooftops and palm trees on the left, and a green valley with river and hills under soft daylight on the right.
Sunday, 19 April 2026

Your weather - Your shots

Seasonal warmth between spring thunder
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