Wivenhoe, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Wivenhoe, Tasmania, Australia, is known for its proximity to the scenic Cradle Mountain-Lake St Clair National Park. The best time to travel to Wivenhoe, Australia, is during the spring months of September to November, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!