Hai Binh, Vietnam offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Hai Binh, Thanh Hoa, Vietnam, is known for its proximity to the Pu Luong Nature Reserve. The best time to travel to Hai Binh, Vietnam, is from November to April, with average air temperatures around 20-25°C (68-77°F) and water temperatures around 24-28°C (75-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!