Baan Bang Rak, Thailand offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Baan Bang Rak, Surat Thani, Thailand, is known for its proximity to the famous Full Moon Party on Koh Phangan. The best time to travel to Baan Bang Rak, Thailand, is from December to February, when the average air temperature is around 27°C (81°F) and the water temperature is approximately 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!