Covill, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Covill, Minnesota, United States, is known for its proximity to the scenic beauty of the Boundary Waters Canoe Area Wilderness. The best time to travel to Covill, United States, is in July when the average air temperature is around 70°F (21°C) and the water temperature is approximately 65°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!