Petrol and Diesel Prices in Porthmadog
Compare petrol and diesel prices at 3 petrol stations in Porthmadog. Prices last updated 09:16 27/03/2026.
Petrol (E10)
149.9p
at Glanaber Garage
Diesel (B7)
174.9p
at PORTHMADOG SUPERSTORE - PETROL FILLING STATION
Super Unleaded (E5)
159.9p
at PORTHMADOG SUPERSTORE - PETROL FILLING STATION
Premium Diesel
199.9p
at MFG PORTHMADOG
Unleaded (E10)
150.0p avg
In line with UK average (150.2p)
Diesel
185.0p avg
6.8p above UK average (178.2p)
Price History in Porthmadog
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.
Porthmadog currently has 3 petrol stations tracked by Fuel Costs UK. The average unleaded petrol price in Porthmadog today is 150.0p per litre, which is in line with the UK national average of 150.2p.
The cheapest unleaded petrol in Porthmadog right now is 149.9p at Glanaber Garage. The cheapest diesel is 174.9p at PORTHMADOG SUPERSTORE - PETROL FILLING STATION.
Fuel prices in Porthmadog 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.