Kunigami, Japan offers 13 beaches perfect for sunbathing, surfing, swimming, and more. Kunigami, Kyushu, Japan, is known for Yanbaru National Park and the Okinawa Rail. The best time to travel to Kunigami, Japan, is from April to June, with average air temperatures around 20-25°C (68-77°F) and water temperatures around 22-25°C (72-77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!