Petrol Price History in Carmarthen
Track how petrol and diesel prices have changed at 7 stations in Carmarthen.
Price Trend
Price Analysis
Petrol (E10) prices in Carmarthen averaged 154.6p per litre in May 2026, up 11.6p from the previous period. The highest recorded price was 159.9p in April 2026.
Prices have been trending upward in Carmarthen recently. Drivers may want to shop around and compare prices between stations to find the best deal.
Over this period, Petrol (E10) prices in Carmarthen ranged from 125.9p to 159.9p per litre — a spread of 34.0p. This significant variation means it pays to compare prices between stations.