Island Beach, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Island Beach is known for its pristine white sandy beaches and proximity to Kangaroo Island's natural attractions. The best time to visit Island Beach, Australia, is from December to February, with average air temperatures around 25°C (77°F) and water temperatures near 21°C (70°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!