Marcus Beach, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Marcus Beach, Queensland, Australia, is known for its proximity to the Noosa National Park and the stunning Sunshine Coast beaches. The best time to travel to Marcus Beach, Australia, is from September to November, with average air temperatures around 20-25°C (68-77°F) and water temperatures around 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!