Central America

Lesser Antilles

Cumaná Cumaná Ponce Ponce Santo Domingo Santo Domingo Caracas Caracas Aruba Aruba Willemstad Willemstad Port of Spain Port of Spain St Thomas St Thomas Saint Kitts Saint Kitts Antigua Antigua Guadeloupe Guadeloupe Dominica Dominica Saint Lucia Saint Lucia Grenada Grenada uv index Lesser Antilles Central America Forecast maps
Last updated: Tu, 16 Jul, 07:00 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.