Niijima, Japan offers 1 beach perfect for sunbathing, surfing, swimming, and more. Niijima is known for its stunning Habushiura Beach, the Niijima Glass Art Center, and the Yunohama Open-Air Hot Spring. The best time to travel to Niijima, Japan, is from late spring to early summer (May to June) when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 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!