Yes, there are lockers near Bairro Alto. The opening hours are from 9am until 8pm every day. The locker prices vary according to rental period: €4 for under 5 hours, €8 for less than 11 hours or €15 for a full day. That means that if you plan on storing your items for a full day, you can do it a lot cheaper with LuggageHero - only 8€ for a full day.