Hakusan, Japan offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Hakusan, Chubu, Japan, is known for the Hakusan National Park and the sacred Mount Hakusan. The best time to travel to Hakusan, Japan, is in late spring (May), when the average air temperature is around 18°C (64°F) and the water temperature in nearby rivers is approximately 12°C (54°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!