Nichinan, Japan offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Nichinan is known for the Udo Shrine, a picturesque Shinto shrine set in a cave overlooking the ocean. The best time to travel to Nichinan, Japan, is from April to June, with average air temperatures around 18-25°C (64-77°F) and water temperatures around 20-23°C (68-73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!