Fleurieu And Kangaroo Island, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Fleurieu And Kangaroo Island, South Australia, Australia, is known for Kangaroo Island's Flinders Chase National Park and the Remarkable Rocks. The best time to travel to Fleurieu and Kangaroo Island, Australia, is from December to February, with average air temperatures around 20-30°C (68-86°F) and water temperatures around 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!