ultraviolet index in Gilchrist (East Bay) (8 mi.) | ultraviolet index in Rollover Pass (tcoon) (9 mi.) | ultraviolet index in Round Point (20 mi.) | ultraviolet index in Galveston Bay Entrance (South Jetty) (26 mi.) | ultraviolet index in Port Bolivar (28 mi.) | ultraviolet index in Point Barrow (Trinity Bay) (28 mi.) | ultraviolet index in Umbrella Point (Trinity Bay) (29 mi.) | ultraviolet index in Galveston Pier 21 (31 mi.) | ultraviolet index in Galveston Pleasure Pier (32 mi.) | ultraviolet index in Sabine Pass North (33 mi.)