Petrol and Diesel Prices in Monmouth
Compare petrol and diesel prices at 3 petrol stations in Monmouth, GWENT. Prices last updated 14:08 26/09/2026.
Petrol (E10)
182.9p
at SHELL OVERMONNOW
Diesel (B7)
199.9p
at SHELL OVERMONNOW
Super Unleaded (E5)
203.9p
at ASDA MONMOUTH SOUTH EXPRESS PETROL
Premium Diesel
220.9p
at ASDA MONMOUTH SOUTH EXPRESS PETROL
Unleaded (E10)
184.0p avg
10.0p above UK average (174.0p)
Diesel
201.0p avg
2.0p above UK average (199.0p)
Price History in Monmouth
See how fuel prices have changed over time with interactive charts and analysis.
Click any column header to sort. Prices shown in pence per litre.
Stations within a few miles of Monmouth — worth the short drive for cheaper fuel.
Monmouth (GWENT) currently has 3 petrol stations tracked by FuelCosts.co.uk. The average unleaded petrol price in Monmouth today is 184.0p per litre, which is 10.0p above the UK national average of 174.0p.
The cheapest unleaded petrol in Monmouth right now is 182.9p at SHELL OVERMONNOW. The cheapest diesel is 199.9p at SHELL OVERMONNOW.
Fuel prices in Monmouth are sourced from the UK Government's CMA Fuel Finder scheme and updated every 4 minutes. We recommend comparing prices before filling up, as prices can vary significantly between stations even within the same town.