Miyakojima, Japan offers 45 beaches perfect for sunbathing, surfing, swimming, and more. Miyakojima is known for its stunning beaches like Yonaha Maehama and Sunayama, as well as the Irabu Ohashi Bridge. The best time to travel to Miyakojima, Japan, is from April to June, with average air temperatures around 25°C (77°F) and water temperatures around 24°C (75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!