Towns › Porthmadog
3 forecourts in Porthmadog, Gwynedd, Wales. Cheapest unleaded is 156.9p at Porthmadog Superstore - Petrol Filling Station. Cheapest diesel is 181.9p at Porthmadog Superstore - Petrol Filling Station.
Prices as reported to Fuel Finder up to 28 Aug 2026, 16:00. Checking for newer prices…
| Station | Unleaded | Diesel | Super | Premium diesel | Updated |
|---|---|---|---|---|---|
| Porthmadog Superstore - Petrol Filling Station Tesco · Tesco Stores Ltd, Stryd Fawr, Porthmadog LL49 9NU | 156.9p | 181.9p | 167.9p | – | 2 days ago |
| Mfg Porthmadog Shell · High Street, Porthmadog LL49 9LU | 159.9p | 185.9p | 185.9p | 199.9p | 3 days ago |
| Glanaber Garage Glanaber Garage · Glanaber Garage, Borth-Y-Gest, Porthmadog, LL49 9TP, Porthmadog LL49 9TP | 161.9p | 185.9p | – | – | 2 days ago |
Typical (median) and cheapest unleaded, and typical diesel, across Porthmadog's forecourts each day. Typical unleaded is unchanged over the last 7 days and up 4.0p over the last 30 days.
Search within 10 miles of Porthmadog instead
Forecourts must report every price change to the government's Fuel Finder scheme within 30 minutes. This page is rebuilt from the daily data and then checks the live feed when you open it, so the figures you see are the latest reported. Prices are per litre. A blank means the forecourt does not sell that fuel or has not reported a price.