Live prices
Cheapest unleaded petrol (E10) in Porthmadog
3 stations reporting unleaded petrol (E10), ranked cheapest first.
The cheapest reported unleaded petrol (E10) in Porthmadog is £7.72 a gallon (169.9p per litre) at Tesco, Tesco Stores Ltd, Stryd Fawr, Porthmadog (LL49 9NU). The average across 3 forecourts currently reporting this grade is £7.91 a gallon (173.9p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £2.00 on a 50-litre fill. That local average is 1.4p per litre above the UK average of 172.5p.
The average is unchanged since yesterday. The average has risen 4.7p per litre since last week.
Prices last refreshed at 2:32pm on 20 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
| Station | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|
 Porthmadog Superstore - Petrol Filling Station (LL49 9NU)24hTesco Stores Ltd, Stryd Fawr, Porthmadog | £7.72169.9p | £8.86194.9p | £8.22180.9p | ---- | 43 mins ago |
 Mfg Porthmadog (LL49 9LU)High Street, Porthmadog, Gwynedd | £8.00175.9p | £9.09199.9p | £8.91195.9p | £9.82215.9p | 43 mins ago |
| Glanaber Garage (LL49 9TP)Glanaber Garage, Borth-y-gest, Porthmadog, LL49 9TP, Porthmadog | £8.00175.9p | £9.09199.9p | ---- | ---- | 43 mins ago |
Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0) and checked every 30 minutes. Only stations reporting unleaded petrol (E10) appear here.
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Questions about unleaded petrol (E10) in Porthmadog
- Where is the cheapest unleaded petrol (E10) in Porthmadog?
- The cheapest reported unleaded petrol (E10) in Porthmadog is 169.9p per litre at Tesco, Tesco Stores Ltd, Stryd Fawr, Porthmadog (LL49 9NU). The average across 3 forecourts reporting this grade is 173.9p per litre. Prices were last refreshed at 2:32pm on 20 September 2026 from official UK Government fuel price data.
- How many stations in Porthmadog sell unleaded petrol (E10)?
- 3 forecourts in Porthmadog currently report a price for unleaded petrol (E10) through the official UK fuel price open data scheme. Stations that do not sell or report this grade are not counted.