Karatsu, Japan offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Karatsu is known for Karatsu Castle, the Karatsu Kunchi Festival, and its beautiful Niji-no-Matsubara pine forest. The best time to travel to Karatsu, Japan, is in October when the average air temperature is around 20°C (68°F) and the water temperature is approximately 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
