Fuel Prices in Carmarthen town centre
Live comparison for SA31 area. Tracking 5 stations across 55 brands. For a detailed breakdown including 7-day price trends, market competition analysis, and savings tips, and also find Today’s Cheapest Petrol and Diesel in Carmarthen town centre .
Wales
5 Stations
5 Brands
Updated 3 May 2026
View Carmarthen town centre on the Fuel Map
Compare all 5 stations visually on our interactive map to find the cheapest fuel near your route.
7-Day Price Movement
Petrol (E10)
154.4p
154.2p
Diesel (B7)
184.7p
183.8p
Cheapest Today
Area Averages vs National
Petrol
153.5p
▼ 3.3p vs UK Avg
Super Unleaded
168.3p
▼ 5.8p vs UK Avg
Diesel
184.5p
▼ 3.5p vs UK Avg
Super Diesel
188.5p
▼ 19.6p vs UK Avg
All Fuel Stations in Carmarthen town centre (SA31)
Frequently Asked Questions About Fuel in Carmarthen town centre
As of 3 May 2026, the cheapest E10 petrol in Carmarthen town centre is 152.9p at MORRISONS, PARC PENSARN, CARMARTHEN, CARMARTHENSHIRE, WALES.
There is currently a 2.0p difference between the cheapest and most expensive stations in Carmarthen town centre. For a standard 55-litre family car, that equals a saving of £1.10 per tank.
We update prices daily using data provided directly by fuel stations via the Competition and Markets Authority (CMA) Open Data scheme. This is a UK Government initiative requiring all major retailers to report live prices, ensuring you see the most accurate data for the Carmarthenshire area.
Not today. MORRISONS is actually cheaper than local supermarkets in SA31. It's always worth comparing before filling up.
We are currently tracking 5 active fuel stations in the SA31 area, operated by 5 different brands including MORRISONS, TESCO, MURCO and more.
The cheapest B7 diesel in Carmarthen town centre is currently 180.9p at MURCO. You can also use our interactive fuel map to compare diesel prices visually.
Nearby Locations
Prices sourced from the UK Government CMA Open Data Scheme, updated every 30 minutes. CheckFuelPrices is editorially independent — read our policy.