Ban Tai, Thailand offers 17 beaches perfect for sunbathing, surfing, swimming, and more. Ban Tai is known for the Full Moon Party on Koh Phangan. The best time to travel to Ban Tai, Thailand, is from December to February, when the average air temperature is around 28°C (82°F) and the water temperature is approximately 27°C (81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!