Pak Nam, Thailand offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Pak Nam, Chumphon, Thailand, is known for its beautiful beaches and as a gateway to the islands in the Gulf of Thailand. The best time to travel to Pak Nam, Thailand, is from November to February, when the average air temperature is around 28°C (82°F) and the water temperature is approximately 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!