Waterville Valley, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Waterville Valley is known for the Waterville Valley Resort, a popular destination for skiing and outdoor activities. The best time to visit Waterville Valley is during the summer months of June to August, when the average air temperature is around 70-80°F and water temperature in nearby lakes is approximately 65-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!