North America

San Francisco Day 5 to 8 UV index

Local Time Su Feb 25 Mo Feb 26 Tu Feb 27 We Feb 28
UV index 4 4 5 5

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: Th, 22 Feb, 00:11 GMT


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