Creston, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Creston, Iowa, United States, is known for the McKinley Park and the annual Creston/Southwest Iowa Hot Air Balloon Days. The best time to travel to Creston, United States, is in late spring or early fall when the average air temperature is around 60-70°F, and water temperatures in nearby lakes are typically 60-65°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!