Winnsboro, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Winnsboro, South Carolina, United States, is known for the historic Fairfield County Courthouse and the South Carolina Railroad Museum. The best time to travel to Winnsboro, United States, is in the spring (April to May) when the average air temperature is around 70°F (21°C) and water temperature is not a significant factor as it is not a coastal area. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!