Rockingham, Australia offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Rockingham is known for Penguin Island and the Shoalwater Islands Marine Park. The best time to travel to Rockingham, Australia, is from November to March, when the average air temperature is around 25-30°C (77-86°F) and the water temperature is approximately 20-23°C (68-73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!