Esashi, Japan offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Esashi, Hokkaido, Japan, is known for the Esashi Oiwake Folk Song and the historic Esashi Oiwake Hall. The best time to travel to Esashi, Japan, is from late spring to early autumn (May to September) when the average air temperature ranges from 15°C to 25°C and the water temperature is around 15°C to 20°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!