Live fuel prices

Petrol prices in Carmarthen

Unleaded from 164.9p a litre, averaging 165.5p across 5 stations we track in Carmarthen.

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At a glance

Stations tracked: 5
Local areas: 1
Cheapest unleaded: 164.9p
Cheapest diesel: 186.9p

Data updated 8 hours ago

Petrol prices in Carmarthen rarely move as one. A forecourt on a busy through road and one tucked behind a retail park can be several pence apart on the same morning.

Our current view of Carmarthen covers 5 filling stations, refreshed through the day from the official CMA price feed.

On the diesel side, Carmarthen starts at 186.9p a litre and averages 187.3p, a gap worth a short detour on a big fill.

Scroll down for the cheapest petrol in Carmarthen we can currently see, along with the full spread across every grade.

Fuel prices Carmarthen - today’s snapshot

We track 5 active petrol stations in and around Carmarthen with recent prices. (Data updated 8 hours ago)

Lowest reported petrol price: 164.9p at Murco near SA31 2EY, Carmarthen.

Unleaded petrol (E10)

Lowest price: 164.9p
Average price: 165.5p
Highest price: 166.9p
Spread: 2.0p across 5 sites

Diesel (B7)

Lowest price: 186.9p
Average price: 187.3p
Highest price: 187.9p
Spread: 1.0p across 5 sites

Premium petrol (E5)

Lowest price: 171.5p
Average price: 180.6p
Highest price: 189.9p
Spread: 18.4p across 4 sites

Premium diesel

Lowest price: 192.5p
Average price: 192.5p
Highest price: 192.5p
Spread: 0.0p across 1 sites

Figures cover stations reporting to the official CMA price feed within the last 30 days. We exclude obvious reporting errors - prices given in pounds rather than pence, retailer test records, and premium grades priced below the standard grade - so the averages reflect what you can actually pay.

Fuel brands in Carmarthen

Murco (2) Tesco (1) Texaco (1) Morrisons (1)

Cheapest petrol stations in Carmarthen

Petrol and diesel prices Carmarthen, sorted by unleaded so the cheapest petrol is first. Open any station for its price history and nearby comparison.

Station	Local area	Petrol	Diesel
Morrisons Parc Pensarn, Carmarthen SA31 2NF	Carmarthen	164.9p	186.9p
Murco Tanerdy Garage, Carmarthen SA31 2EY	Carmarthen	164.9p	186.9p
Tesco Stores, Caerfyrddin SA31 3AX	Carmarthen	164.9p	186.9p
Texaco Towy Service Station, Caerfyrddin SA31 2BN	Carmarthen	165.9p	187.9p
Murco C K's Supermarket, Carmarthen SA31 3HL	Carmarthen	166.9p	187.9p

Wider area

See prices across South Wales if you want the bigger picture.

Places nearby

Drill into a specific area for its own price snapshot and cheapest stations.

Cardiff 31 stations from 164.9p Swansea 21 stations from 164.9p Carmarthenshire 14 stations from 164.9p Newport 13 stations from 163.9p Bridgend 9 stations from 160.9p Pembrokeshire 9 stations from 158.9p Llanelli 8 stations from 164.9p Flintshire 8 stations from 166.9p Ceredigion 7 stations from 166.9p Caerphilly 5 stations from 161.9p Monmouthshire 5 stations from 169.9p Barry 5 stations from 163.7p Neath 5 stations from 161.9p Pontypool 5 stations from 159.9p Cwmbrân 4 stations from 159.7p Blackwood 4 stations from 163.7p Aberdare 4 stations from 163.9p Merthyr Tydfil 4 stations from 169.9p Pontypridd 4 stations from 162.9p Port Talbot 4 stations from 165.9p Risca 3 stations from 165.9p Ystalyfera 3 stations from 168.9p Haverfordwest 3 stations from 163.9p

Common questions about fuel in Carmarthen

What is the latest reported petrol price in Carmarthen?

The latest reported petrol prices in Carmarthen run from 164.9p to 166.9p per litre, with an average of 165.5p across 5 stations. The lowest unleaded price we can see is 164.9p at MURCO near SA31 2EY.

What is the latest reported diesel price in Carmarthen?

The latest reported diesel prices in Carmarthen run from 186.9p to 187.9p per litre, with an average of 187.3p across 5 stations.

How many stations do you track around Carmarthen?

We currently track 5 active petrol stations in and around Carmarthen. Prices are refreshed from the official CMA fuel price feed throughout the day.

Where is the cheapest petrol in Carmarthen?

The cheapest petrol in Carmarthen we can currently see is 164.9p a litre at MURCO near SA31 2EY. That is 0.6p below the local average of 165.5p.

How many petrol stations are there in Carmarthen?

We track 5 petrol stations in and around Carmarthen with recent prices, including Murco, Tesco, Texaco. Each one is listed with its latest unleaded and diesel price.

How do I compare stations near Carmarthen?

Open the map to compare stations near Carmarthen and work out which stop makes sense for your route. You can sort by price or distance and filter to supermarket forecourts only.

Is it cheaper to fill up with petrol or diesel in Carmarthen?

Diesel currently averages 21.8p more per litre than unleaded in Carmarthen, at 187.3p against 165.5p. That gap changes with wholesale costs, so it is worth checking before a big fill.

Open the map for Carmarthen

Use the main finder with Carmarthen already centred, then sort by price or distance to pick your stop.

Open fuel finder for Carmarthen