Use Current Location

Average Petrol Price in Gwynedd

Petrol (E10)157.4p
Diesel (B7S)178.5p

Today the average petrol price in Gwynedd is 157.41p per litre. 1.3p higher than the average price in Wales.

The current average price of diesel is 178.50p per litre. 1.4p above the Welsh diesel average.

We calculate the daily averages by analysing price data from the 23 petrol stations in Gwynedd that are sending price changes to the Fuel Finder system.

Cheapest Petrol in Gwynedd

The cheapest petrol in Gwynedd is in Bangor (154.5p per litre).

Currently, buying 60 litres of petrol in Bangor costs £3.46 less than in Pwllheli (160.2p 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
Bangor5154.46p177.26p
Caernarfon5154.50p174.50p
Porthmadog4157.90p178.15p
Pwllheli6160.23p180.73p

Average petrol prices last updated at 12 Jun 2026 10:00 (14 hours, and 11 minutes ago).

Petrol & Diesel Price Trends

The average price of petrol in Gwynedd has decreased by 1p in the last week. Diesel has fallen by 2.8p.

In the last month petrol has dropped by 0.2p and. and diesel has fallen by 7.4p.