Iron Mountain, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Iron Mountain is not typically known for beach tourism but is recognized for its outdoor recreational activities and natural beauty. The best time to travel to Iron Mountain, United States, is during the summer months of June to August, when the average air temperature is around 70-80°F and water temperatures in nearby lakes are 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!