Nakadomari, Japan offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Nakadomari is known for the Shirakami-Sanchi, a UNESCO World Heritage Site featuring ancient beech forests. The best time to travel to Nakadomari, Japan, is from late spring to early summer (May to June), when the average air temperature is around 15-20°C (59-68°F) and the water temperature is approximately 14-18°C (57-64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!