Tambon Ko Pha ngan, Thailand offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Tambon Ko Pha ngan is known for the Full Moon Party. The best time to travel to Tambon Ko Pha Ngan, Thailand, is from December to March, with average air temperatures around 27°C (81°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!