Kumihamacho Kamai, Japan offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kumihamacho Kamai is known for its scenic views of the Kumihama Bay and the nearby Kinosaki Onsen. The best time to travel to Kumihamacho Kamai, Japan, is in late spring (May), when the average air temperature is around 20°C (68°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!