ultraviolet index in Apra harbor (Guam) (15 km) | ultraviolet index in Rota Island (86 km) | ultraviolet index in Tinian Island (193 km) | ultraviolet index in Saipan Harbor (Saipan Island) (221 km) | ultraviolet index in Tanapag Harbor (Saipan Island) (224 km) | ultraviolet index in Pagan Island (533 km) | ultraviolet index in Ifalik Atoll (688 km) | ultraviolet index in Namonuito Atoll (757 km) | ultraviolet index in Pulap Atoll (819 km) | ultraviolet index in Nomwin Atoll (942 km)