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Fuel Prices in Gwynedd — Petrol 148.8p/Litre [Today]

Last updated: 2 April 2026

Current Fuel Prices in Gwynedd

Fuel prices can vary significantly depending on your location, but knowing where you stand is crucial when it comes to saving money on petrol and diesel. As of 30 March 2026, the average price for unleaded fuel in Gwynedd is 148.8p per litre, while diesel costs an average of 176.5p per litre.

These figures are based on data from DESNZ weekly road fuel prices (Gov.uk), providing a reliable snapshot of current fuel costs in the region.

How Gwynedd Compares to the UK Average

The national average for unleaded petrol is 148.8p per litre, which matches exactly with what you'll find in Gwynedd. However, diesel prices are slightly above the national average of 176.5p per litre.

While these figures might seem high, it's worth noting that fuel prices can fluctuate daily based on supply and demand dynamics. So, keeping an eye on local price changes is always a good idea.

Cheapest Places to Buy Fuel in Gwynedd

If you're looking for the best deals on petrol and diesel in Gwynedd, supermarkets like Asda, Tesco, Sainsbury's, and Morrisons are often your best bet. These stores typically offer fuel at 3-5p per litre less than branded stations.

For instance, a litre of unleaded petrol might cost you around 146p in a supermarket compared to 150p at a branded station. This small difference can add up over time if you fill your tank regularly.

Tips for Saving on Fuel in Gwynedd

Take Advantage of Loyalty Points: Many supermarkets offer fuel loyalty cards that reward you with points for every pound you spend. These points often convert into cash back or discounts at the pump, making your shopping trips more cost-effective.
Fuel Cards for Business Users: If you're running a business and need to fill up regularly, consider signing up for fuel cards from companies like BP, Shell, and Tesco. These cards can provide significant savings if used consistently.
Drive Efficiently: Simple changes in your driving habits can make a big difference. Accelerate gently, maintain the correct tyre pressure, and remove roof racks when not needed to improve fuel efficiency.

Why Fuel Prices Vary Across Gwynedd

Fuel prices across Gwynedd vary for several reasons:

Competition: In areas with a high number of petrol stations, competition drives down prices. Conversely, fewer competitors in remote locations can lead to higher costs.
Distance from Refineries: Stations closer to refineries often have lower transportation costs and pass these savings onto customers through reduced fuel prices.
Motorway Premiums: Fuel stations located near motorways tend to be more expensive due to the higher volume of passing traffic, making it easier for them to charge premium rates.
- Rural vs Urban Areas: Rural areas in Gwynedd may see higher prices because of lower customer density and increased transport costs. In contrast, urban areas with denser populations tend to have more competition and thus lower prices.
You do not need to pay for fuel price comparison - this information is free and readily available through reliable sources like DESNZ weekly road fuel prices (Gov.uk). Stay informed and make the most of your budget when filling up in Gwynedd!

Frequently Asked Questions

What is the average petrol price in Gwynedd today?

According to DESNZ data, the current average price for petrol in Gwynedd is 148.8p per litre.

Where is the cheapest fuel in Gwynedd?

Supermarkets like Asda and Costco often offer some of the lowest fuel prices in Gwynedd. For example, you might find unleaded petrol for around 130-145p per litre at these locations.

Why are fuel prices different across Gwynedd?

Fuel prices can vary significantly across Gwynedd due to factors like competition between retailers and the specific location of a station. Brand-name stations tend to be more expensive compared to supermarkets.

How often do fuel prices change in Gwynedd?

Retailers update their fuel prices daily, while DESNZ publishes average weekly figures for Gwynedd. This means that prices can fluctuate frequently and it's a good idea to check regularly if you're looking to save money.

How can I save money on fuel in Gwynedd?

You can use loyalty cards offered by supermarkets, take advantage of vouchers, and consider using fuel cards for more savings. Driving efficiently also helps reduce your overall consumption, saving you money at the pump.

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