Onawa, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Onawa is known for the Lewis and Clark State Park, which offers historical exhibits and outdoor recreational activities. The best time to travel to Onawa, United States, is in late spring (May), when the average air temperature is around 65°F (18°C) and 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!
