Kahoku, Japan offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Kahoku is known for its scenic rural landscapes and traditional Japanese culture. The best time to travel to Kahoku, Japan, is in late spring (May), when the average air temperature is around 18°C (64°F) and the water temperature is approximately 16°C (61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!