Ashburton, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ashburton, Western Australia, Australia, is known for Karijini National Park and the Ningaloo Coast. The best time to travel to Ashburton, Australia, is from May to September, with average air temperatures ranging from 15°C to 25°C and water temperatures around 22°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!