Wallagoot, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Wallagoot, New South Wales, Australia, is known for Bournda National Park and Wallagoot Lake. The best time to travel to Wallagoot, 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 21°C (70°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!