Fuel prices
Petrol and diesel prices in Wales
Average pump prices across 498 filling stations in Wales, from the prices every UK forecourt must now publish under the government’s Fuel Finder scheme. Checked 16 Sept, 16:47.
- Average unleaded petrol 171.0p 0.7p below the UK average
- Average diesel 193.9p 0.7p below the UK average
- Cheapest petrol 159.9p Tesco Cardigan Superstore
- Filling stations 498 162 at supermarkets
Unleaded petrol averages 171.0p a litre across 478 forecourts in Wales, 0.7p below the UK average. Diesel averages 193.9p, 0.7p below the UK average. The cheapest petrol is at Tesco Cardigan Superstore in Cardigan, 159.9p; the dearest is 196.9p. The cheapest diesel is at Central Garage, 176.9p.
Cheapest petrol and diesel in Wales
| Filling station | Price |
|---|---|
 Tesco Cardigan Superstore Cardigan | 159.9p |
| Tesco Milford Haven Superstore Milford Haven | 159.9p |
| Murco Tudor Garage Cowbridge | 161.9p |
 Asda Pembroke Dock Supermarket Pembroke Dock | 162.7p |
| Tesco Pembroke Dock Superstore Pembroke Dock | 162.9p |
| Tesco Ammanford Superstore Rhydaman | 163.9p |
| Murco, Pen-Y-Fai Service Station Bridgend | 163.9p |
 Gulf Victoria Aberdaugleddau | 164.7p |
| Tesco Neath Abbey Rd Superstore Neath | 164.9p |
| Murco O C Davies & Son Ltd Cardigan | 164.9p |
| Filling station | Price |
|---|---|
| Central Garage Abertyleri | 176.9p |
| Tesco Milford Haven Superstore Milford Haven | 180.9p |
| Murco Tudor Garage Cowbridge | 182.9p |
| Tesco Ammanford Superstore Rhydaman | 184.9p |
| Old Pump Saundersfoot | 185.9p |
 Sainsbury's Pontllanfraith Blackwood | 185.9p |
 Texaco Trebanos Service Station SA8 | 185.9p |
| Tesco Cardigan Superstore Cardigan | 186.9p |
| Tesco Pontyclun Talbot Green Extra Pontyclun | 186.9p |
| Tesco Swansea Pontardawe Superstore Swansea | 186.9p |
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Supermarkets against other forecourts
Supermarket petrol is 2.7p a litre cheaper on average than at other forecourts in Wales.
| Forecourts | Petrol | Diesel | Stations |
|---|---|---|---|
| Supermarkets | 169.1p | 191.8p | 159 |
| Motorway services | 179.7p | 202.7p | 5 |
| Other forecourts | 171.8p | 194.9p | 314 |
Council areas, cheapest first
| Area | Petrol | Diesel |
|---|---|---|
| Pembrokeshire | 168.0p | 191.5p |
| Torfaen | 168.7p | 191.0p |
| Caerphilly | 168.8p | 191.7p |
| Ceredigion | 169.3p | 193.7p |
| Neath Port Talbot | 169.3p | 192.7p |
| Vale of Glamorgan | 169.4p | 193.9p |
| Carmarthenshire | 169.5p | 192.3p |
| Bridgend | 169.8p | 193.1p |
| Rhondda Cynon Taf | 170.1p | 193.2p |
| Isle of Anglesey | 170.2p | 194.7p |
| Blaenau Gwent | 170.2p | 191.4p |
| Powys | 170.9p | 194.9p |
| Wrexham | 171.3p | 193.0p |
| Cardiff | 171.3p | 194.3p |
| Gwynedd | 171.4p | 195.3p |
| Newport | 171.4p | 194.4p |
| Swansea | 172.6p | 195.1p |
| Merthyr Tydfil | 173.7p | 198.5p |
| Monmouthshire | 173.8p | 196.3p |
| Flintshire | 174.3p | 195.1p |
| Denbighshire | 174.6p | 195.4p |
| Conwy | 175.4p | 196.7p |
Data sources and methodology
| Figures | Source | Period | Records | Updated |
|---|---|---|---|---|
| Forecourt prices | Fuel Finder open data Fuel Finder statutory scheme ONS Postcode Directory Office for National Statistics | Prices at 16:47 on 16 September 2026 | 8,070 filling stations | 16 September 2026 |
- Averages use unleaded (E10) and standard diesel (B7) prices at open forecourts, leaving out prices unchanged for over two weeks or far from every other forecourt. They count each forecourt once, not by how much fuel it sells.
- Forecourts are placed in council areas from their postcode, using the ONS Postcode Directory.
Source: Fuel Finder, the UK government’s statutory fuel price scheme.
Source: Office for National Statistics licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026.