Embetsu, Japan offers 1 beach perfect for sunbathing, surfing, swimming, and more. Embetsu is known for the Embetsu River and the scenic Cape Kamuiwakka. The best time to travel to Embetsu, Japan, is in August when the average air temperature is around 22°C (72°F) and the water temperature is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!