Oiso, Japan offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Oiso is known for Oiso Long Beach and Oiso Prince Hotel. The best time to travel to Oiso, Japan, is in late spring (May), when the average air temperature is around 20°C (68°F) and the water 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!
