West Arnhem, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. West Arnhem is known for Kakadu National Park and the indigenous rock art of Ubirr and Nourlangie. The best time to travel to West Arnhem, Australia, is during the dry season from May to October, when the average air temperature is around 30°C (86°F) and water temperature is approximately 25°C (77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!