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Average Petrol Price in Monmouthshire

Petrol (E10)171.4p
Diesel (B7S)193.5p

Today the average petrol price in Monmouthshire is 171.39p per litre. 2.3p higher than the average price in Wales.

The current average price of diesel is 193.53p per litre. 2.5p above the Welsh diesel average.

We calculate the daily averages by analysing price data from the 18 petrol stations in Monmouthshire that are sending price changes to the Fuel Finder system.

Cheapest Petrol in Monmouthshire

The cheapest petrol in Monmouthshire is in Chepstow (169.8p per litre).

Currently, buying 60 litres of petrol in Chepstow costs £5.04 less than in Monmouth (178.2p per litre).

Average Fuel Prices by City/Town

Select a town or city to view local petrol station price data.

TOWN/CITY STATIONS PETROL DIESEL
Abergavenny4170.35p195.35p
Caldicot2169.90p192.40p
Chepstow4169.83p190.85p
Monmouth3178.23p199.90p
Usk2169.90p191.90p

Average petrol prices last updated at 13 Sep 2026 10:00 (20 hours, and 46 minutes ago).

Petrol & Diesel Price Trends

The average price of petrol in Monmouthshire has increased by 4.4p in the last week. Diesel has risen by 2.4p.

In the last month, petrol has increased by 8.9p and diesel has risen by 6.1p.