Ly Son, Vietnam offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Ly Son is known for its stunning volcanic landscapes, garlic farms, and the Hang Pagoda. The best time to travel to Ly Son, Vietnam, is from April to August, when the average air temperature is around 28°C (82°F) and the water temperature is approximately 27°C (81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!