Khum Kaoh Sdach, Cambodia offers 12 beaches perfect for sunbathing, surfing, swimming, and more. Khum Kaoh Sdach, Koh Kong, Cambodia, is known for its pristine beaches and vibrant marine life. The best time to travel to Khum Kaoh Sdach, Cambodia, is from November to February, with average air temperatures around 25-30°C (77-86°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!