Khao Lak, Thailand offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Khao Lak is known for its stunning beaches, the Similan Islands, and Khao Lak-Lam Ru National Park. The best time to travel to Khao Lak, Thailand, is from November to February, with average air temperatures around 28°C (82°F) and water temperatures about 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!