Kushiro, Japan offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kushiro is known for Kushiro Shitsugen National Park and the Kushiro Tancho Nature Park. The best time to travel to Kushiro, Japan, is from June to September, with average air temperatures ranging from 15°C to 20°C and water temperatures around 12°C to 16°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!