Haad Na Dan, Thailand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Haad Na Dan is known for its beautiful beaches and proximity to Khao Luang National Park. The best time to travel to Haad Na Dan, Thailand, is from December to February, with average air temperatures around 27°C (81°F) and water temperatures near 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!