Sioux Center, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sioux Center is known for Dordt University and the Sioux County Youth Fair. The best time to travel to Sioux Center, United States, is in late spring (May to early June) when the average air temperature is around 60-70°F and water temperature in nearby lakes is approximately 55-65°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!