ultraviolet index in Greenwich (7 km) | ultraviolet index in Barking (12 km) | ultraviolet index in Erith (20 km) | ultraviolet index in Tilbury (32 km) | ultraviolet index in Cliffe (40 km) | ultraviolet index in Coryton (43 km) | ultraviolet index in Rochester (45 km) | ultraviolet index in Upnor (46 km) | ultraviolet index in Chatham (46 km) | ultraviolet index in Canvey Island (48 km) | ultraviolet index in Battlesbridge (49 km) | ultraviolet index in Darnett Ness (51 km)