Port Welshpool, Australia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Port Welshpool, Victoria, Australia, is known for the historic Long Jetty and its proximity to Wilsons Promontory National Park. The best time to travel to Port Welshpool, Australia, is during the summer months of December to February, when the average air temperature ranges from 14°C to 24°C (57°F to 75°F) and the water temperature is around 18°C to 20°C (64°F to 68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!