Cardwell, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Cardwell, Queensland, Australia, is known for the Cardwell Jetty and its proximity to Hinchinbrook Island. The best time to travel to Cardwell, Australia, is from May to September, 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!