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Portland Portland Presque Isle Presque Isle Houlton Houlton Bangor Bangor Rockland Rockland Augusta Augusta Greenville Greenville Quebec Quebec S. Johnsbury S. Johnsbury Fryeburg Fryeburg Grand Manan S. Grand Manan S. Millinocket Millinocket Thetford Mines Rcs Thetford Mines Rcs Frenchville Frenchville Fredericton Fredericton Yarmouth Yarmouth Concord Concord uv index Maine North America Forecast maps
Last updated: Fr, 22 Jun, 19:43 BST

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.