Rose Bay, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Rose Bay is known for its scenic views of Sydney Harbour, the historic Catalina Restaurant, and the Rose Bay Seaplane Base. The best time to visit Rose Bay, Australia, is from December to February, with average air temperatures around 75°F (24°C) and water temperatures near 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!