Pak Nai, Hong Kong offers 1 beach perfect for sunbathing, surfing, swimming, and more. Pak Nai, New Territories, Hong Kong, is known for its stunning sunsets and the unique mudflat ecosystem at the Deep Bay area. The best time to travel to Pak Nai, Hong Kong, is from October to December, with average air temperatures around 20-25°C (68-77°F) and water temperatures approximately 23-26°C (73-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!