Pinny Beach, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Pinny Beach, New South Wales, Australia, is known for Lake Macquarie and the Wallarah National Park. The best time to visit Pinny Beach, Australia, is from December to February, 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!