Rainbow Beach, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Rainbow Beach is known for its stunning multicolored sand cliffs and as a gateway to Fraser Island. The best time to visit Rainbow Beach, Australia, is from September to November, with average air temperatures around 25°C (77°F) and water temperatures about 22°C (72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!