Ha Tien, Vietnam offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Ha Tien is known for its Thach Dong Cave Pagoda and Mui Nai Beach. The best time to travel to Ha Tien, Vietnam, is from December to April, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 27-29°C (81-84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!