My Thanh, Vietnam offers 1 beach perfect for sunbathing, surfing, swimming, and more. My Thanh, Binh Dinh, Vietnam, is known for its beautiful beaches and the historic Thap Doi Cham Towers. The best time to travel to My 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!