Setana, Japan offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Setana is known for its scenic coastal landscapes and the Setana Kiritappu Wetland, a haven for birdwatchers. The best time to travel to Setana, Japan, is during late spring (May to June) when the average air temperature is around 15-20°C (59-68°F) and the water temperature is approximately 10-15°C (50-59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!