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Solar UV index Balearic Isl 6-day UV index forecast

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The strength of the sun's ultraviolet (UV) radiation is expressed as a Solar UV Index or Sun Index.The UV Index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the two weeks around the summer solstice). Indices of 9 and 10 are common in the Mediterranean area. The Sun Index forecast refers to the daily maximum. Move the mouse pointer over a symbol to see the name of the region, and click on it to go to the weather forecast for that area.