Cheapest Petrol Prices in Caernarfon
Last updated: · 17 stations tracked
Cheapest Petrol (E10)
153.7p
per litre · avg 157.11p
Cheapest Diesel (B7)
173.9p
per litre · avg 179.46p
Compare live petrol and diesel prices across 17 fuel stations in Caernarfon. Prices are sourced from the UK Government's official fuel price database and updated every hour. The cheapest petrol in Caernarfon today is 153.7p per litre, available at ASDA LLANGEFNI SUPERMARKET.
Supermarket forecourts — including Tesco, Asda, and Sainsbury's — typically offer the lowest prices in Caernarfon. Motorway services and branded stations (BP, Shell, Esso) often charge a premium. Use the table below to find the best deal near you.
Fuel Station Prices in Caernarfon
| Station | Unleaded (E10) | Diesel (B7) | Super Unleaded | Premium Diesel |
|---|---|---|---|---|
| Caer Service Station | 154.9p | 176.9p | — | — |
| MFG MORRISONS CAERNARFON | 154.9p | 176.9p | 169.9p | — |
| Gwalia Garage Caernarfon Limited | 154.9p | 176.9p | 166.9p | — |
| Ddraig Goch Garage | 164.9p | 188.9p | — | — |
| dolydd | 159.9p | 179.9p | 175.9p | — |
| London garage service station | 156.9p | 185.9p | — | — |
| STERMAT HARDWARE LTD | 153.9p | 173.9p | 164.9p | — |
| Beran Filling Station | 156.9p | 176.9p | — | — |
| Tyn Lon Garage Limited | 164.9p | 176.9p | 177.9p | — |
| BANGOR EXTRA - PETROL FILLING STATION | 154.9p | 181.9p | 163.9p | — |
| Bryn Llwyd Services | 153.9p | 174.9p | 165.9p | 186.9p |
| SHELL BRITANNIA | 163.9p | 183.9p | 184.9p | 209.9p |
| Herron Services | 153.9p | 174.9p | 165.9p | 186.9p |
| ASDA LLANGEFNI SUPERMARKET | 153.7p | 174.7p | — | — |
| ASDA BANGOR FARRAR ROAD SUPERMARKET | 154.7p | 181.7p | — | — |
| ASDA BANGOR EXPRESS PETROL | 156.9p | 185.9p | 175.9p | 204.9p |
| GARTH SERVICES | 156.9p | 179.9p | 184.9p | 209.9p |
Frequently Asked Questions
What is the cheapest petrol price in Caernarfon?
The cheapest petrol in Caernarfon is currently 153.7p per litre as of 5 June 2026. The average across all stations is 157.11p.
Which supermarket has the cheapest fuel in Caernarfon?
Tesco, Asda, and Sainsbury's supermarket forecourts typically offer the lowest fuel prices in Caernarfon. Check the price table above to compare all stations including branded and independent retailers.
How often are fuel prices updated for Caernarfon?
Prices are updated hourly from the UK Government's mandatory fuel price reporting scheme, which requires all fuel retailers with 6 or more sites to submit prices every 30 minutes.