Port Jefferson Farmers Market The Port Jefferson Farmers Market sells the following items: Fruits Vegetables Much More! Check back to see more vendors that will be added before we open! Additional Information Location: Corner of Route 25A and Route 112 Steam Room Parking Lot Port Jefferson, NY 11777 Click here to get directions Dates and Times: July 4th - Oct 17th Thursdays: 10 a.m. - 4:30 p.m. Contact Information: Ethel Terry 631-323-3653 longislandgrowersmarket@gmail.com