Asahi, Japan offers 12 beaches perfect for sunbathing, surfing, swimming, and more. Asahi, Kanto, Japan, is known for the Asahi Beer Factory, which offers tours and tastings of its famous beverages. The best time to travel to Asahi, 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!