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
Split image showing a colourful sunset sky on the left and a faint rainbow over houses on the right.
Sunday, 22 March 2026

Your weather - Your shots

Pleasant to unsettled spring views
Purple crocus flowers emerging from soil beside a garden path, with green grass and shrubs in the background.
Friday, 20 March 2026

Astronomical spring

The spring equinox has passed
Wind map showing a powerful cyclone off the north-east coast of Australia. The red centre indicates a Category 5 storm near Cairns. The surrounding areas show strong wind patterns.
Thursday, 19 March 2026

Gusts of up to 177 mph

Extreme cyclone heads to north Australia
All weather news
This might also interest you
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
Split weather map showing UK wind speeds in orange-red shades up to 40 mph on the left and warning levels in green-yellow on the right, with a central wind warning sign.
Wednesday, 22 October 2025

Warnings active

Storm Benjamin impacts the UK
Weather map of the UK and Ireland showing scattered showers with cloudy patches across much of the region, especially around western and northern areas. Sunshine symbols appear over London, Cardiff, and parts of southern England, while temperatures range from 17°C to 18°C in most places. Areas of heavier rain are visible over the Atlantic to the west.
Friday, 29 August 2025

Breakfast brief

Unsettled conditions into the weekend
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