Greggs – Southsea – Opening Hours & Store Details You’ll find Greggs easily accessible at 15 Palmerston Road, approximately 0.21 miles north-west of the centre of Southsea (by St. Judes Church Bus Stop). The store is situated in a convenient location for patrons from Portsmouth, Milton, Portsea, Somers Town, Gosport, Old Portsmouth, Fratton and Southsea Town Centre. Doors are open today (Friday) from 7:00 am to 6:00 pm, for those who’d like to visit. Please review this page for the specifics on Greggs Southsea, including the hours of business, local navigation, phone number and other information.