Cheapest Petrol Prices in Porthmadog
Last updated: · 11 stations tracked
Cheapest Petrol (E10)
158.9p
per litre · avg 163.09p
Cheapest Diesel (B7)
176.9p
per litre · avg 187.00p
Compare live petrol and diesel prices across 11 fuel stations in Porthmadog. Prices are sourced from the UK Government's official fuel price database and updated every hour. The cheapest petrol in Porthmadog today is 158.9p per litre, available at PORTHMADOG SUPERSTORE - PETROL FILLING STATION.
Supermarket forecourts — including Tesco, Asda, and Sainsbury's — typically offer the lowest prices in Porthmadog. 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 Porthmadog
| Station | Unleaded (E10) | Diesel (B7) | Super Unleaded | Premium Diesel |
|---|---|---|---|---|
| MFG PORTHMADOG | 163.9p | 189.9p | 185.9p | 199.9p |
| PORTHMADOG SUPERSTORE - PETROL FILLING STATION | 158.9p | 184.9p | 169.9p | — |
| Madog Garage / Hamdden Caravans Ltd | 158.9p | 184.9p | — | — |
| Glanaber Garage | 161.9p | 185.9p | — | — |
| Allan Green | 165.9p | 189.9p | — | — |
| MORFA GARAGE | 162.9p | 176.9p | — | — |
| MORFA GARAGE | 168.9p | 190.9p | — | — |
| Parciau Filling Station | 160.9p | 186.9p | 175.9p | 201.9p |
| Cambrian Garage | 166p | 190p | — | — |
| Prysor Service Station LTD | 161.9p | 189.9p | 176.9p | — |
| BARMOUTH ROAD SERVICE STATION | 163.9p | 186.9p | 189.9p | — |
Frequently Asked Questions
What is the cheapest petrol price in Porthmadog?
The cheapest petrol in Porthmadog is currently 158.9p per litre as of 5 September 2026. The average across all stations is 163.09p.
Which supermarket has the cheapest fuel in Porthmadog?
Tesco, Asda, and Sainsbury's supermarket forecourts typically offer the lowest fuel prices in Porthmadog. Check the price table above to compare all stations including branded and independent retailers.
How often are fuel prices updated for Porthmadog?
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.