Franconia, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Franconia, New Hampshire, United States, is known for its stunning natural landscapes, including Franconia Notch State Park and the Flume Gorge. The best time to travel to Franconia, United States, is in the fall (September to October) when the average air temperature is around 50-60°F, and water temperatures in nearby lakes are typically cooler, around 50°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!