Iwata, Japan offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Iwata is known for Yamaha Stadium, the home of the Jubilo Iwata football team. The best time to travel to Iwata, Japan, is in April when the average air temperature is around 15°C (59°F) and the average water temperature is approximately 14°C (57°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!