Zion, United States offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Zion is known for Illinois Beach State Park, which offers beautiful natural landscapes and recreational activities along the shores of Lake Michigan. The best time to visit Zion is in late spring or early fall, with average air temperatures around 60-80°F and water temperatures in the Virgin River around 50-60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!