Seiro, Japan offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Seiro, Chubu, Japan, is known for its scenic views of the Agano River and the nearby Yahiko Shrine. The best time to travel to Seiro, Japan, is in late spring (May), when the average air temperature is around 18°C (64°F) and the water temperature is approximately 15°C (59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
