Ky Xuan, Vietnam offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ky Xuan is known for its pristine beaches and natural landscapes in Ha Tinh, Vietnam. The best time to travel to Ky Xuan, Vietnam, is from March to May, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 26-28°C (79-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!