Xuan Lien, Vietnam offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Xuan Lien, Ha Tinh, Vietnam, is known for the Ke Go Nature Reserve. The best time to travel to Xuan Lien, Vietnam, is from November 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!