The latest increase is also the biggest of the past eight months, with both diesel and unleaded petrol going up by three cents a litre.

The price of fuel went up in Portugal as the cost of crude climbed to 52 dollars a barrel. Overall, the cost of oil has risen by ten percent in the last month alone.

With these latest increases, the average cost of a litre of diesel has gone up to just under one euro and 20 cents, while unleaded fuel sits at one euro and 41 cents.