Baan Mae Nam, Thailand offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Baan Mae Nam, Surat Thani, Thailand, is known for its proximity to the popular tourist destination of Koh Samui. The best time to travel to Baan Mae Nam, Thailand, is from December to February, with average air temperatures around 27°C (81°F) and water temperatures near 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!