Port Willunga, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Port Willunga is known for its stunning beach, the Star of Greece shipwreck, and the iconic cliffside caves. The best time to travel to Port Willunga, Australia, is during the late spring to early autumn (November to March), when the average air temperature ranges from 20°C to 30°C (68°F to 86°F) and the water temperature is around 18°C to 22°C (64°F to 72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!