Fuel prices in Portugal are expected to increase significantly starting Monday due to the ongoing conflict in the Middle East driving up global oil costs. Diesel prices are projected to climb by 9.5 cents per liter, while gasoline is expected to rise by 6 cents, pushing diesel costs back above the 2-euro-per-liter mark.

Fuel prices will shift starting next week, with petrol expected to rise by 2.5 to 3.5 cents per litre. Conversely, diesel prices are set to decrease, with estimates ranging from a 0.9-cent drop to a 4-cent reduction according to the Automóvel Club de Portugal (Automóvel Club de Portugal or ACP). These fluctuations reflect market trends and recent government adjustments to fuel discounts.

Fuel prices are scheduled to rise again this coming Monday across Portugal. Diesel is expected to increase by seven to eight cents per litre, while petrol will see a rise of 2.5 cents per litre.

Fuel prices will rise again on Monday, with diesel increasing by eight cents per litre and petrol by three and a half cents. The increase in diesel will thus exceed 50 cents since the war began, and a 50-litre tank will cost, on average, €26 more than it did a month ago.

Fuel costs in Portugal have risen sharply since the start of the conflict in the Middle East, with diesel prices increasing by 30% and petrol by 14%. A 50-litre tank of diesel now costs approximately 104 euros, up from 80 euros just over a month ago. While the government has extended some tax relief measures, the Bank of Portugal (Banco de Portugal) warns that rising energy costs continue to contribute to economic instability.\n\nUpdate: Diesel prices exceed two euros as sector groups demand support\n\nDiesel prices have risen to 2.232 euros per litre, while petrol prices saw a slight decrease to 1.976 euros. The National Confederation of Agricultural Cooperatives (Confagri) and the National Association of Public Road Freight Carriers (ANTRAM) have both criticized recent government support measures as insufficient to offset rising production costs. Retailers also warned of a significant price increase for gas cylinders (garrafas de gás) starting this Wednesday.

Diesel prices in Portugal are set to rise by about €0.19 and petrol by roughly €0.07 next Monday, prompting long queues at filling stations as motorists top up in advance. Consumer group DECO PROteste warned higher fuel costs will ripple through the economy, increasing transport and food prices, while analysts flag fertilizer supply pressures tied to Brent crude and tensions around the Strait of Hormuz. The price shock has also prompted political pushback, with some parties demanding an urgent parliamentary debate on relief measures. Drivers and shoppers should expect higher local transport and grocery costs in the coming weeks.

Update: Chega leader calls for VAT return, urgent debate

André Ventura, leader of Chega, challenged the government to “return to taxpayers” the extra VAT (IVA (Imposto sobre o Valor Acrescentado)) revenue generated by the coming fuel-price rise and said his party will ask for an urgent debate in the Assembleia da República next week; he also described the government’s 3.55‑cent ISP (Imposto sobre Produtos Petrolíferos or ISP) discount as insufficient.