Minamata, Japan offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Minamata is known for Minamata Disease Municipal Museum, which educates visitors about the environmental and human impact of industrial pollution. The best time to travel to Minamata, Japan, is in April when the average air temperature is around 15°C (59°F) and the water temperature is approximately 16°C (61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!