Rock Island, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Rock Island, Tennessee, United States, is known for Rock Island State Park. The best time to travel to Rock Island, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and the Mississippi River water temperature is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
