Content guide
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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*At least 10% of new customers pay this for single-vehicle Roadside (basic). ^T&Cs apply.
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.
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