Petrol (E10) prices in Caernarfon averaged 239.3p per litre in March 2026, up 108.7p from the previous period. The highest recorded price was 1479.0p in March 2026.

Prices have been trending upward in Caernarfon recently. Drivers may want to shop around and compare prices between stations to find the best deal.

Over this period, Petrol (E10) prices in Caernarfon ranged from 124.7p to 1479.0p per litre — a spread of 1354.3p. This significant variation means it pays to compare prices between stations.