Ikata, Japan offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Ikata is known for the Ikata Nuclear Power Plant and the scenic Sadamisaki Peninsula, which is the narrowest peninsula in Japan. The best time to travel to Ikata, Japan, is in late spring (May), when the average air temperature is around 20°C (68°F) and the water temperature is approximately 19°C (66°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!