Van Thanh, Vietnam offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Van Thanh, Khanh Hoa, Vietnam is known for its proximity to the stunning beaches and vibrant marine life of Nha Trang Bay. The best time to travel to Van Thanh, Vietnam, is from December to April, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 26-29°C (79-84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!