Silt, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Silt, Colorado, United States, is known for its proximity to the Colorado River and the nearby White River National Forest. The best time to travel to Silt, United States, is in late spring (May to June) when the average air temperature is around 60-75°F (15-24°C) and the Colorado River water temperature is approximately 50-60°F (10-16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!