Alton, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Alton, New Hampshire, United States, is known for Lake Winnipesaukee and Mount Major. The best time to travel to Alton, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and the water temperature in nearby rivers is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
