Met Office: UK solar UV index

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	Solar UV index

UK regional five-day UV index forecast

The solar UV index shown is the maximum for that region of the UK. Hover over a symbol to see the name of the region, and click on it to go to the weather forecast for that region.

The five-day UV index forecast for locations in Europe is also available.

See the solar UV index key below for a guide to the risk of damage to your skin.

Click the buttons below the image to see the forecast for the next four days (day 1 is today).

Solar UV index

The strength of the sun's ultraviolet (UV) radiation is expressed as a 'Solar UV Index', a system developed by the World Health Organization. These Met Office forecasts include the effects of:

the position of the sun in the sky;
forecast cloud cover;
ozone amounts in the stratosphere.

The risk of damage to your skin can be determined, based on your skin-type, from the table. More information on the index is available as part of the Department of Health's sunsafe campaign.

Index	Fair, burns	Fair, tans	Brown	Black
	Low	Low	Low	Low
	Medium	Low	Low	Low
	High	Medium	Low	Low
	Very high	Medium	Medium	Low
	Very high	High	Medium	Medium
	Very high	High	Medium	Medium
	Very high	High	Medium	Medium
	Very high	High	High	Medium

Real-time UV data

The solar UV index is measured at six sites around the UK: clicking on the site will show today's data.

These plots will be updated at approximately quarter past each hour, the latest update time is shown on the graphic.

The measurements are made by the National Radiological Protection Board (NRPB). Information about how these measurements are made can be found on the NRPB site