Zilzie, Australia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Zilzie, Queensland, Australia, is known for its proximity to the Capricorn Coast and the Keppel Bay Islands. The best time to travel to Zilzie, Australia, is from May to September, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 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!