Port Wing, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Port Wing, Wisconsin, United States, is known for the Port Wing Boreal Forest State Natural Area and its proximity to the scenic Lake Superior shoreline. The best time to travel to Port Wing, United States, is during the summer months of June to August, when the average air temperature ranges from 60°F to 75°F (15°C to 24°C) and the water temperature in Lake Superior is around 55°F to 65°F (13°C to 18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!