Exmouth, Australia offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Exmouth, Western Australia, Australia, is known for Ningaloo Reef and Cape Range National Park. The best time to travel to Exmouth, Australia, is from April to October, with average air temperatures ranging from 20°C to 30°C and water temperatures around 22°C to 26°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!