Boulder, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Boulder is known for the Flatirons, Pearl Street Mall, and the University of Colorado Boulder. The best time to travel to Boulder, United States, is from June to August, when the average air temperature is around 70-85°F (21-29°C) and water temperatures in nearby lakes and reservoirs are typically around 65-75°F (18-24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
