Goto, Japan offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Goto is known for its beautiful Goto Islands, Hidden Christian Sites, and the Goto Archipelago National Park. The best time to travel to Goto, Japan, is from April to June, with average air temperatures around 18-24°C (64-75°F) and water temperatures around 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!