Kuroshio, Japan offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Kuroshio is known for the Kuroshio Sea, a part of the Pacific Ocean famous for its warm currents and diverse marine life. The best time to travel to Kuroshio, Japan, is from May to October, with average air temperatures around 20-28°C (68-82°F) and water temperatures ranging from 21-27°C (70-81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!