Portugal runs on 230 V at 50 Hz, with sockets following Types C and F. No surprises on voltage: Portugal runs at 230 V, the same range as at home in the UK.
Handy for multi-stop trips: Bulgaria, Greece, Slovenia and Lithuania use the same plug types. Nearby but different: Ireland, the United Kingdom and Gibraltar – an adapter for Portugal will not fit there. 31 of the 50 destinations in Europe share the plug types of Portugal.
Protective earth
Grounded and ungrounded sockets may occur
Portugal has sockets with a protective earth (Type F) and without (Type C). A plug that fits mechanically does not guarantee earthing.