Linesville, United States offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Linesville, Pennsylvania, United States, is known for the Linesville Spillway where visitors can feed the fish. The best time to travel to Linesville, United States, is in late spring (May), when the average air temperature is around 65°F (18°C) and the water temperature in nearby Pymatuning Lake 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!