Cronulla, Australia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Cronulla is known for its beautiful beaches, particularly Cronulla Beach, and the Royal National Park. The best time to travel to Cronulla, Australia, is from December to February, with average air temperatures around 25°C (77°F) and water temperatures around 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!