Akune, Japan offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Akune is known for the Akune Oshima Island and the Akune City Marine Park. The best time to travel to Akune, Japan, is in April when the average air temperature is around 17°C (63°F) and the water temperature is approximately 18°C (64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!