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Average Petrol Price in Monmouthshire

Petrol (E10)158.8p
Diesel (B7S)180.3p

Today the average petrol price in Monmouthshire is 158.81p per litre. 0.7p higher than the average price in Wales.

The current average price of diesel is 180.35p per litre. 4.4p above the Welsh diesel average.

We calculate the daily averages by analysing price data from the 17 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 (154.5p per litre).

Currently, buying 60 litres of petrol in Chepstow costs £5.64 less than in Monmouth (163.9p 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
Abergavenny4158.65p182.40p
Caldicot2160.40p179.40p
Chepstow4154.50p177.35p
Monmouth3163.90p186.90p
Usk2157.40p177.40p

Average petrol prices last updated at 28 Jul 2026 10:00 (5 hours, and 14 minutes ago).

Petrol & Diesel Price Trends

The average price of petrol in Monmouthshire has increased by 4.0p in the last week. Diesel has risen by 5.0p.

In the last month, petrol has increased by 6.9p and diesel has risen by 6.3p.