Minh Chau, Vietnam offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Minh Chau, Quang Ninh, Vietnam, is known for its pristine beaches and the Minh Chau Island within the Bai Tu Long Bay. The best time to travel to Minh Chau, Vietnam, is from October to April, with average air temperatures around 20-25°C (68-77°F) and water temperatures approximately 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!