Port Douglas, Australia offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Port Douglas is known for its proximity to the Great Barrier Reef and Daintree Rainforest. The best time to visit Port Douglas, Australia, is from May to September, with average air temperatures around 25°C (77°F) and water temperatures around 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!