Bantam, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Bantam, Cocos, Australia, is known for its stunning beaches and the Cocos (Keeling) Islands' unique marine life. The best time to travel to Bantam, Australia, is from December to February, with average air temperatures around 25°C (77°F) and water temperatures near 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!