One Mile, Australia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. One Mile, New South Wales, Australia, is known for its proximity to the stunning One Mile Beach and the nearby Tomaree National Park. The best time to travel to One Mile, Australia, is from November to April, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 22-26°C (72-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!