Baan Lamai, Thailand offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Baan Lamai is known for its proximity to the stunning beaches and vibrant nightlife of Koh Samui. The best time to travel to Baan Lamai, Thailand, is from November to February, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 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!