Motobu, Japan offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Motobu is known for the Okinawa Churaumi Aquarium and the beautiful Emerald Beach. The best time to travel to Motobu, Japan, is from April to June, when the average air temperature is around 22-28°C (72-82°F) and the water temperature is approximately 23-26°C (73-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!