Glenn, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Glenn is known for its proximity to Lake Michigan beaches and charming small-town atmosphere. The best time to travel to Glenn, United States, is typically in late spring or early fall, with average air temperatures around 60-75°F (15-24°C) and water temperatures in nearby lakes or rivers ranging from 55-70°F (13-21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!