Rokeby, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Rokeby, Tasmania, Australia, is known for its proximity to the historic site of the Coal Mines Historic Site and the scenic beauty of the South Arm Peninsula. The best time to travel to Rokeby, Australia, is during the summer months of December to February, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-20°C (64-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!