Hitachi, Japan offers 14 beaches perfect for sunbathing, surfing, swimming, and more. Hitachi is known for the Hitachi Seaside Park, which features stunning seasonal flower displays, particularly the blue nemophila blooms in spring. The best time to travel to Hitachi, Japan, is in late spring (May), when the average air temperature is around 18°C (64°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!