Samani, Japan offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Samani, Hokkaido, Japan, is known for the Cape Enrumu and the Samani Coast, which offer stunning natural landscapes and scenic views. The best time to travel to Samani, Japan, is in August when the average air temperature is around 20°C (68°F) and the average sea 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!