ultraviolet index in Folly River Bridge (Flooy Island) (1.0 mi.) | ultraviolet index in Folly Island (outer Coast) (2.0 mi.) | ultraviolet index in Folly River (North, Folly Island) (2.1 mi.) | ultraviolet index in Abbapoola Creek Entrance (3 mi.) | ultraviolet index in Snake Island (4 mi.) | ultraviolet index in James Island Creek (1 mi. above ent.) (5 mi.) | ultraviolet index in Fort Johnson (6 mi.) | ultraviolet index in Wappoo Creek (6 mi.) | ultraviolet index in Elliott Cut Entrance (7 mi.) | ultraviolet index in Fort Sumter (7 mi.) | ultraviolet index in South Ashley Bridge (7 mi.) | ultraviolet index in Charleston (8 mi.) | ultraviolet index in The Cove (Fort Moultrie) (8 mi.) | ultraviolet index in Oak Branch (Bohicket Creek) (8 mi.) | ultraviolet index in Church Creek Bridge (9 mi.) | ultraviolet index in Shem Creek (9 mi.) | ultraviolet index in Sandblasters (Pennys Creek) (9 mi.) | ultraviolet index in Ben Sawyer Bridge (9 mi.) | ultraviolet index in Sullivans Island (outer Coast) (9 mi.) | ultraviolet index in Pennys Creek (West Entrance) (9 mi.)