ultraviolet index in Port Holland (Basilian Island) (49 km) | ultraviolet index in Isabela (Basilian Island) (55 km) | ultraviolet index in Zamboanga (69 km) | ultraviolet index in Linawan Island (69 km) | ultraviolet index in Balas (Basilian Island) (74 km) | ultraviolet index in Bulan Island (76 km) | ultraviolet index in Capual Island (80 km) | ultraviolet index in Amoyloi (Basilian Island) (81 km) | ultraviolet index in Tulayan Island (81 km) | ultraviolet index in Bojelebung (Basilian Island) (85 km)