Petrol and Diesel Prices in Caernarfon
Compare petrol and diesel prices at 7 petrol stations in Caernarfon. Prices last updated 19:44 11/08/2026.
Petrol (E10)
152.9p
at London garage service station
Diesel (B7)
177.9p
at London garage service station
Super Unleaded (E5)
168.9p
at Gwalia Garage Caernarfon Limited
Premium Diesel
N/A
Unleaded (E10)
158.0p avg
3.8p below UK average (161.8p)
Diesel
180.0p avg
2.0p below UK average (182.0p)
Price History in Caernarfon
See how fuel prices have changed over time with interactive charts and analysis.
Click any column header to sort. Prices shown in pence per litre.
Stations within a few miles of Caernarfon — worth the short drive for cheaper fuel.
Caernarfon currently has 7 petrol stations tracked by FuelCosts.co.uk. The average unleaded petrol price in Caernarfon today is 158.0p per litre, which is 3.8p below the UK national average of 161.8p.
The cheapest unleaded petrol in Caernarfon right now is 152.9p at London garage service station. The cheapest diesel is 177.9p at London garage service station.
Fuel prices in Caernarfon are sourced from the UK Government's CMA Fuel Finder scheme and updated every 4 minutes. We recommend comparing prices before filling up, as prices can vary significantly between stations even within the same town.