Itoshima, Japan offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Itoshima is known for its scenic Sakurai Futamigaura beach with the iconic couple rocks and the Shima Sunset Road. The best time to travel to Itoshima, Japan, is from April to June, with average air temperatures around 15-25°C (59-77°F) and water temperatures around 16-22°C (61-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!