Sandbar, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sandbar, New South Wales, Australia, is known for Myall Lakes National Park and its pristine beaches. The best time to travel to Sandbar, Australia, is during the summer months of December to February, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!