Smithfield Township, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Smithfield Township, Pennsylvania, United States, is known for the Delaware Water Gap National Recreation Area. The best time to travel to Smithfield Township, United States, is in late spring (May), when the average air temperature is around 65°F (18°C) and the water temperature is approximately 55°F (13°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!