Petrol and Diesel Prices in Monmouth
Compare petrol and diesel prices at 3 petrol stations in Monmouth, GWENT. Prices last updated 05:12 12/08/2026.
Petrol (E10)
164.9p
at ASDA MONMOUTH SOUTH EXPRESS PETROL
Diesel (B7)
189.9p
at ASDA MONMOUTH SOUTH EXPRESS PETROL
Super Unleaded (E5)
183.9p
at ASDA MONMOUTH SOUTH EXPRESS PETROL
Premium Diesel
204.9p
at SHELL OVERMONNOW
Unleaded (E10)
166.0p avg
4.2p above UK average (161.8p)
Diesel
190.0p avg
8.0p above UK average (182.0p)
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 166.0p per litre, which is 4.2p above the UK national average of 161.8p.
The cheapest unleaded petrol in Monmouth right now is 164.9p at ASDA MONMOUTH SOUTH EXPRESS PETROL. The cheapest diesel is 189.9p at ASDA MONMOUTH SOUTH EXPRESS PETROL.
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.