Port Jefferson, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Port Jefferson is known for its picturesque harbor, the Port Jefferson Ferry, and the Long Island Explorium. The best time to travel to Port Jefferson, United States, is during late spring to early fall (May to September) when the average air temperature ranges from 60°F to 80°F and the water temperature is around 60°F to 70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
