Tonga Islands

Niuafo’ou Niuafo’ou Keppel Keppel Lupepau Lupepau Tongatapu Tongatapu Ha'apai Ha'apai Niue Niue Pago Pago Pago Pago Wallis Wallis Futuna Futuna Undu Point Undu Point Lakeba Lakeba On i Lau On i Lau uv index Tonga Islands Oceania Forecast maps
Last updated: Sa, 14 Dec, 18:06 GMT

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.