Oakwood Hills, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Oakwood Hills, Illinois, United States, is known for its proximity to the Moraine Hills State Park and the Fox River, offering outdoor recreational activities. The best time to travel to Oakwood Hills, United States, is during late spring to early fall (May to September) when the average air temperature ranges from 60-80°F and water temperature is around 65-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!