Mission River, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Mission River, Queensland, Australia, is known for its proximity to the Steve Irwin Wildlife Reserve. The best time to travel to Mission River, Australia, is during the dry season from May to October, when the average air temperature is around 25-30°C (77-86°F) and the water temperature is approximately 24-28°C (75-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!