Seven Mile Beach, Australia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Seven Mile Beach, Tasmania, Australia, is known for its expansive sandy beach and proximity to the Hobart International Airport. The best time to visit Seven Mile Beach, Australia, is from December to February, with average air temperatures around 75°F (24°C) and water temperatures near 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!