Saint Helens, Australia offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Saint Helens, Tasmania, Australia, is known for the Bay of Fires, a stunning coastal region famous for its white sandy beaches and vibrant orange-hued granite rocks. The best time to travel to St Helens, Australia, is during the summer months of December to February, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-20°C (64-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!