Nanao, Japan offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Nanao is known for Noto Peninsula, Wakura Onsen, and Notojima Aquarium. The best time to travel to Nanao, Japan, is from late spring to early summer (May to June) when the average air temperature is around 18-22°C (64-72°F) and the water temperature is approximately 16-20°C (61-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!