Check the UV Index
To help you know when you need to be careful outside, the World Health Organisation developed the UV Index. The UV Index is a way of describing the strength of the sun's rays. It is used in weather forecasts and reports.
How does it work?
The UV index is a measure of the sun's strength. The higher the value, the greater the danger from the sun and the less time it takes to damage your skin.
UV ratings are usually shown as a number in a triangle on a weather map. How dangerous the UV level is for you depends on your skin type. The lighter your skin, the more dangerous the sun's UV rays. Check your burn risk using our special table.
What are normal levels of UV?
The strength of UV rays outside can vary depending on:
- where you are in the world
- the time of year
- the time of day
- the weather
- how high up you are (altitude)
On a clear summer's day in the UK, the UV index may reach 7 around midday, but it is rarely higher. Near the equator the UV index is often greater.
Between October and March the UV index is normally lower than 3, so even people with fair skin do not need to protect their skin.
Where can I check the UV index?
You can check today's UV index forecast for different parts of the UK and Europe at the Met Office website.
Once you know the UV rating then use the burn risk table to work out whether you are at risk.
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