Ozu, Japan offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Ozu is known for Ozu Castle and Garyu Sanso in regard to tourism. The best time to travel to Ozu, Japan, is in April when the average air temperature is around 15°C (59°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!