Fuel pumps at a station.
Fuel pumps at a station.

Fuel prices in Wales

Barney Cotton

Barney Cotton

Consumer Editor

6 minute read|4th Sep 2026

Find the cheapest fuel prices in Wales with RAC Fuel Watch.

Our petrol and diesel price monitoring initiative tracks the prices drivers pay at the pumps and helps ensure retailers charge a fair price at all the UK’s forecourts. 

In this guide, we uncover the lowest petrol and diesel prices in Wales, along with the cheapest fuel stations.

Latest fuel station prices in Wales 

Here are the latest average prices for unleaded petrol and diesel in Wales. These prices are updated daily where data is available. Data is provided without warranty. 

There are currently over 600 fuel stations in Wales. 

Wales petrol prices 

Wales diesel prices 

Cheapest fuel stations in Wales 

UK fuel prices

Supermarket fuel prices 

Here are the fuel prices at supermarket petrol stations in the UK 

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RAC orange van attending a breakdown on a mountain road with driver talking to patrolman.

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Wales fuel prices FAQs

There are around 600-650 fuel stations spread out across the whole of Wales – which roughly equates to around 6-7% of the UK’s total forecourts. This is based on the latest data from Fuels Industry UK. 

Fuel prices can vary considerably from one area to another, and even between nearby petrol stations, due to factors such as local competition, operating expenses, business rates, fuel demand, and proximity to fuel distribution centres.

Petrol and diesel are produced through different refining processes and are influenced by separate market factors. Strong global demand for diesel, particularly from the commercial transport and industrial sectors, can push prices higher, meaning diesel is often more expensive than unleaded petrol.

Supermarket filling stations are often among the cheapest places to buy fuel because they can operate with lower profit margins. However, independent retailers and local forecourts may sometimes offer even better prices, especially in areas where competition between fuel stations is high.

Yes, fuel retailers across Wales and the rest of the UK can change their prices regularly, often every day and sometimes several times a week, in response to wholesale fuel costs, local market conditions and the pricing strategies of nearby competitors.