Millersburg, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Millersburg, Michigan, United States, is known for its proximity to Ocqueoc Falls, the largest waterfall in Michigan's Lower Peninsula. The best time to travel to Millersburg, United States, is in late spring (May to June) when the average air temperature is around 60-70°F and water temperatures in nearby lakes and rivers are typically in the 50-60°F range. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!