Ang Thong, Thailand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ang Thong, Surat Thani, Thailand, is known for the Ang Thong National Marine Park, a stunning archipelago of 42 islands featuring limestone mountains, thick jungle, white-sand beaches, and hidden coves. The best time to travel to Ang Thong, Thailand, is from December to February, with average air temperatures around 25-30°C (77-86°F) and water temperatures about 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!