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Llyn Trawsfynydd UV index
| Local Time | Fr Apr 19 | Sa Apr 20 | Su Apr 21 | Mo Apr 22 |
| UV index | 4 | 4 | 3 | 3 |
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: Thu 18 Apr 17:26 EDT
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