Diesel prices in Portugal are projected to rise by two cents per litre next week, while gasoline is expected to fall by one cent, according to estimates from the Automóvel Club de Portugal (ACP).
The forecast assumes current wholesale market trends continue into the upcoming pricing cycle.
This divergence highlights the distinct cost structures and tax treatments affecting different fuel types in the Iberian market.
While gasoline prices soften, diesel remains under upward pressure, likely driven by higher wholesale costs or specific supply dynamics affecting the heavier fuel fraction.
The Portuguese government has previously committed to applying extraordinary and temporary reductions in the Special Consumption Tax (ISP) whenever fuel prices increase by more than 10 cents.
This mechanism aims to shield consumers from sharp spikes, though the current projected moves for diesel and gasoline appear to fall below that threshold, suggesting no immediate tax intervention is triggered.