Ban Chang, Thailand offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Ban Chang, Ranong, Thailand, is known for its proximity to the hot springs and the lush greenery of the Ngao Waterfall National Park. The best time to travel to Ban Chang, 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!