Heron Island, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Heron Island is known for its Great Barrier Reef, Heron Island Resort, and the University of Queensland's Heron Island Research Station. The best time to travel to Heron Island, Australia, is from May to October, when the average air temperature is around 23°C (73°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!