Minami, Japan offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Minami, Shikoku, Japan, is known for the Muroto UNESCO Global Geopark and the scenic Cape Muroto. The best time to travel to Minami, Japan, is from April to June when the average air temperature is around 18-25°C (64-77°F) and the water temperature is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!