Copper Falls, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Copper Falls, Michigan, United States, is known for the historic Copper Falls Mine and the scenic Copper Falls State Park. The best time to visit Copper Falls, United States, is in late summer when the average air temperature is around 70°F and the water temperature is approximately 60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!