Pennsville, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Pennsville is known for the Supawna Meadows National Wildlife Refuge and the nearby Fort Mott State Park. The best time to travel to Pennsville, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and the water temperature 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!