Caernarfon Petrol & Diesel Prices
The cheapest unleaded in Caernarfon is 169.9p at Clynnog Service Station, London garage service station and 1 more. The dearest is 171.9p at Gwalia Garage Caernarfon Limited: 2.0p a litre, £1.10 a tank more.
Prices last checked 25 October 2026 · 6 of 7 Caernarfon forecourts reported in the last 14 days · official Fuel Finder data
Cheapest petrol in Caernarfon
- 1 Clynnog Service StationLL54 5PF · 2 days ago 169.9p
- 2 London garage service stationLL55 4DE · 5 days ago 169.9p
- 3 dolyddLL54 7EF · 9 days ago 169.9p
- 4 MFG Morrisons CaernarfonLL55 1BE · 9 days ago 171.7p
- 5 Caer Service StationLL55 2HP · 11 days ago 171.9p
- 6 Gwalia Garage Caernarfon LimitedLL55 2SS · 3 days ago 171.9p
Cheapest diesel in Caernarfon
- 1 Clynnog Service StationLL54 5PF · 2 days ago 195.9p
- 2 dolyddLL54 7EF · 9 days ago 195.9p
- 3 MFG Morrisons CaernarfonLL55 1BE · 9 days ago 196.7p
- 4 Caer Service StationLL55 2HP · 11 days ago 196.9p
- 5 Gwalia Garage Caernarfon LimitedLL55 2SS · 3 days ago 196.9p
- 6 London garage service stationLL55 4DE · 5 days ago 198.9p
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Supermarket fuel prices in Caernarfon
| Supermarket | Sites | Petrol from | Diesel from |
|---|---|---|---|
| Morrisons | 1 | 171.7p | 196.7p |
All petrol stations in Caernarfon
| Hours | |||||||
|---|---|---|---|---|---|---|---|
| Clynnog Service Station LL54 5PF | Murco | 169.9p | 195.9p | 189.9p | -1.0p | Mon 06:00 to 22:00 | 2d ago |
| London garage service station LL55 4DE | Essar | 169.9p | 198.9p | -1.0p | Mon 06:30 to 20:00 | 5d ago | |
| dolydd LL54 7EF | Texaco | 169.9p | 195.9p | 185.9p | -1.0p | Mon 07:00 to 20:30 | 9d ago |
| MFG Morrisons Caernarfon LL55 1BE | Morrisons | 171.7p | 196.7p | 189.9p | +0.8p | Mon 06:00 to 23:00 | 9d ago |
| Caer Service Station LL55 2HP | Texaco | 171.9p | 196.9p | +1.0p | Mon 06:00 to 21:00 | 11d ago | |
| Gwalia Garage Caernarfon Limited LL55 2SS | Shell | 171.9p | 196.9p | 183.9p | +1.0p | Mon 06:30 to 22:00 | 3d ago |
Retailers must report a price change to the government's Fuel Finder scheme within 30 minutes, so a forecourt that last reported a few days ago simply has not changed its price. Opening hours are each retailer's own entry in the scheme.
1 station has stopped reporting (more than 14 days) and is left out of every figure above
- Beran Filling Station, last reported 36 days ago
A price that old is not a current market price, so we do not show it as one. These stations may have closed, changed hands or dropped out of the scheme.
More forecourts near Caernarfon
These 21 forecourts are outside Caernarfon's own postcodes, so they are not counted in the figures above. Distances are straight lines from the middle of Caernarfon.
| Forecourt | Miles | E10 | Diesel | Reported |
|---|---|---|---|---|
| parc bach ltdLL74 8PU | 13.5 | 166.9p | 194.9p | 3d ago |
| Herron ServicesLL77 7EY | 9.5 | 167.9p | 194.9p | 3d ago |
| Stermat Hardware LtdLL60 6BL | 7.3 | 167.9p | 194.9p | 4d ago |
| Pentraeth ServicesLL75 8AZ | 11.4 | 167.9p | 194.9p | 3d ago |
| Bryn Llwyd ServicesLL57 4SU | 7.6 | 167.9p | 194.9p | 3d ago |
| Asda Llangefni Supermarketnot reportingLL77 7DW | 10.0 | 168.7p | 195.7p | 17d ago |
| ABC Service StationLL588YH | 11.2 | 170.9p | 197.9p | 11d ago |
| Tyn Lon Garage LimitedLL61 5SX | 7.4 | 170.9p | 199.9p | 1d ago |
| Parciau Filling StationLL52 0RN | 13.8 | 172.9p | 196.9p | 13d ago |
| MFG PorthmadogLL49 9LU | 14.2 | 172.9p | 201.9p | 2d ago |
| Asda Bangor Farrar Road SupermarketLL57 1LJ | 8.8 | 174.7p | 198.7p | 12d ago |
| Madog Garage / Hamdden Caravans Ltdnot reportingLL49 9NY | 13.8 | 174.9p | 199.9p | 33d ago |
| Porthmadog Superstorenot reportingLL49 9NU | 13.9 | 174.9p | 199.9p | 31d ago |
| O H Griffith & Conot reportingLL53 6UE | 14.6 | 175.9p | 199.9p | 20d ago |
| Asda Bangor Express PetrolLL57 4BG | 8.4 | 175.9p | 199.9p | 10d ago |
| Garth Servicesnot reportingLL57 1AB | 9.6 | 175.9p | 199.9p | 25d ago |
| Bangor ExtraLL57 4SU | 7.3 | 175.9p | 199.9p | 11d ago |
| Shell BritanniaLL59 5EB | 8.1 | 176.9p | 201.9p | 2d ago |
| Allan Greennot reportingLL48 6LS | 15.0 | 177.9p | 203.9p | 34d ago |
| Glanaber Garagenot reportingLL49 9TP | 14.6 | 177.9p | 203.9p | 27d ago |
| Ddraig Goch GarageLL61 6RP | 4.9 | 179.9p | 204.9p | 10d ago |
Caernarfon against the rest
Average E10 unleaded. Bars start at 165p so the differences are visible.
Caernarfon fuel questions
Where is the cheapest petrol in Caernarfon today?
Clynnog Service Station, London garage service station and 1 more, at 169.9p a litre for E10 unleaded, from prices last checked on 25 October 2026. The Caernarfon average is 170.9p.
Where is the cheapest diesel in Caernarfon?
Clynnog Service Station and dolydd, at 195.9p a litre, from prices last checked on 25 October 2026.
How often are these prices updated?
Retailers must report a price change to the government's Fuel Finder scheme within 30 minutes. We read the full data every 30 minutes and rebuild this page every morning.
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