Hirao, Japan offers 1 beach perfect for sunbathing, surfing, swimming, and more. Hirao is known for the Hirao Tenmangu Shrine and its scenic views of the Seto Inland Sea. The best time to travel to Hirao, Japan, is in April when the average air temperature is around 15°C (59°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!