Douglas River, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Douglas River, Tasmania, Australia, is known for its scenic coastal landscapes and proximity to the Bay of Fires. The best time to travel to Douglas River, Australia, is during the dry season from May to September, with average air temperatures around 25°C (77°F) and water temperatures around 24°C (75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!