Mudjimba, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mudjimba is known for Mudjimba Beach and Old Woman Island. The best time to travel to Mudjimba, Australia, is from September to November, with average air temperatures around 20-25°C (68-77°F) and water temperatures 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!