Namekagon, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Namekagon, Wisconsin, United States, is known for the Namekagon River, which is a popular destination for canoeing and fishing within the St. Croix National Scenic Riverway. The best time to travel to Namekagon, United States, is during the summer months of June to August, when the average air temperature is around 70-80°F and the water temperature is approximately 65-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!