Vinh Hai, Vietnam offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Vinh Hai is known for Nui Chua National Park and Vinh Hy Bay in regard to tourism. The best time to travel to Vinh Hai, Vietnam, is from February to April, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 26-28°C (79-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!