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Washington UV index

Local Time Su May 20 Mo May 21 Tu May 22 We May 23
UV index 5 6 4 6


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.


Last updated: Su, 20 May, 11:23 BST

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