Wakkanai, Japan offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Wakkanai is known for Cape Soya, the northernmost point of Japan, and Rishiri-Rebun-Sarobetsu National Park. The best time to travel to Wakkanai, Japan, is in August when the average air temperature is around 20°C (68°F) and the sea temperature is approximately 18°C (64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!