ultraviolet index in Tanapag Harbor (Saipan Island) (323 km) | ultraviolet index in Saipan Harbor (Saipan Island) (326 km) | ultraviolet index in Tinian Island (352 km) | ultraviolet index in Rota Island (450 km) | ultraviolet index in Pago Bay (Guam) (533 km) | ultraviolet index in Apra harbor (Guam) (535 km) | ultraviolet index in Iwojima (硫黄島) - 硫黄島 (873 km) | ultraviolet index in Hahajima (母島) - 母島 (1015 km) | ultraviolet index in Chichijima (父島) - 父島 (1061 km) | ultraviolet index in Namonuito Atoll (1143 km)