Saikai, Japan offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Saikai, Kyushu, Japan, is known for the Kujukushima Islands and Saikai National Park. The best time to travel to Saikai, Japan, is from late March to early May, with average air temperatures around 15-20°C (59-68°F) and water temperatures around 16-18°C (61-64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
