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

    Before the cool-down: High UV Index in coming days

11:00
22 August 2023

Before the cool-down
High UV Index in coming days

sun flare

With only a few days left of the warm and sunny weather, don't get caught out as the UV reaches high levels across the UK and Ireland.

During 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.

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.

This week, UV levels could reach 'High' for your area as temperatures rise into the mid-to-high twenties beneath plenty of sunshine, reaching 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!

It then looks to cool down by the weekend, but even beneath the strength of the sun your skin can still burn. Check the WeatherRadar for the latest.

Weather & Radar editorial team

More on the topic

First widespread frost of the season. Scrapers at the ready!. . . Thursday 12 November 2026
Split image showing a UK and Ireland temperature map with lows of -3°C near Cardiff, beside a gloved hand scraping frost from a car windscreen.
Thursday 12 November 2026

Scrapers at the ready!

First widespread frost of the season
Front brings showers from the south-west. Brolly needed for some. . . Tuesday 10 November 2026
Weather map showing blue rain bands across southern Ireland, Wales and southwest England, with a northeastward arrow and temperatures of 7–10°C.
Tuesday 10 November 2026

Brolly needed for some

Front brings showers from the south-west
Meteor shower peaks with mixed visibility. Better view Thursday. . . Wednesday 11 November 2026
Split image showing a UK weather map with temperatures of 0–7°C and snow showers in Scotland, beside a bright meteor streak in a starry night sky.
Wednesday 11 November 2026

Better view Thursday

Meteor shower peaks with mixed visibility
All weather news

This might also interest you

A stormy week in the skies above. Your weather - Your shots. . . Sunday 30 August 2026
Split image showing lightning branching beneath dark storm clouds above rooftops on the left and an orange-pink sunset over a calm sea on the right.
Sunday 30 August 2026

Your weather - Your shots

A stormy week in the skies above
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
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
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

facebooktwitteryouTubelinkList