An increase of 1.5 cents is expected for both diesel and gasoline, a source in the sector told Notícias ao Minuto.

These predictions come at a time when the average price of simple diesel is €1.427/litre, while that of straight petrol 95 is €1.641/litre, according to data from the Directorate-General for Energy and Geology (DGEG) .

These average prices, it should be noted, "are calculated based on the prices communicated by the fuel stations, weighted with the quantities sold in the last known period, incorporating the discounts practiced at the filling stations, such as fleet cards and others".

The average weekly price, calculated by the Energy Services Regulatory Entity (ERSE), increased, compared to last week, by 1.7% for gasoline and 2.1% for diesel, according to a report released on Monday.