Tan Thanh, Vietnam offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Tan Thanh, Binh Thuan, Vietnam, is known for its proximity to the scenic Mui Ne sand dunes and the vibrant fishing village culture. The best time to travel to Tan Thanh, Vietnam, is from December to April, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 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!