Prey Nob, Cambodia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Prey Nob, Sihanoukville, Cambodia, is known for Ream National Park and its pristine beaches. The best time to travel to Prey Nob, 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!