Khon Tai, Laos offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Khon Tai, Champasak, Laos, is known for its proximity to the stunning Khone Phapheng Falls, the largest waterfall in Southeast Asia. The best time to travel to Khon Tai, Laos, is from November to February, with average air temperatures around 25°C (77°F) and water temperatures near 24°C (75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!