Dong Hoa, Vietnam offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Dong Hoa is known for its stunning beaches like Bai Mon and the historic Da Dia Reef. The best time to travel to Dong Hoa, Vietnam, is from December to April, when the average air temperature is around 24-30°C (75-86°F) and the water temperature is approximately 25-28°C (77-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!