Islip, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Islip, New York, United States, is known for the Fire Island National Seashore and the Bayard Cutting Arboretum. The best time to travel to Islip, United States, is from June to September, with average air temperatures ranging from 70°F to 85°F and water temperatures around 70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
