Main Beach, Australia offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Main Beach, Queensland, Australia, is known for Sea World and the luxurious Marina Mirage shopping complex. The best time to visit Main Beach, Australia, is from December to February, with average air temperatures around 25-28°C (77-82°F) and water temperatures about 24-26°C (75-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!