Vinton, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Vinton, Iowa, United States, is known for the Benton County Courthouse and the annual Boomtown fireworks festival. The best time to travel to Vinton, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and water temperature is approximately 65°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!