Penn Yan, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Penn Yan is known for the Keuka Lake Wine Trail and the Finger Lakes region. The best time to travel to Penn Yan, United States, is in late spring or early fall when the average air temperature is around 60-70°F and the water temperature in nearby lakes is approximately 60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!