Fuel Prices in Porthmadog, Borth-y-Gest, Morfa Bychan, Penmo...
Live comparison for LL49 area. Tracking 5 stations across 27 brands. For a detailed breakdown including 7-day price trends, market competition analysis, and savings tips, and also find Today’s Cheapest Petrol and Diesel in Porthmadog, Borth-y-Gest, Morfa Bychan, Penmorfa, Prenteg, Tremadog .
Wales
5 Stations
5 Brands
Updated 19 Mar 2026
View Porthmadog, Borth-y-Gest, Morfa Bychan, Penmorfa, Prenteg, Tremadog on the Fuel Map
Compare all 5 stations visually on our interactive map to find the cheapest fuel near your route.
7-Day Price Movement
Petrol (E10)
140.9p
144.7p
Diesel (B7)
160.1p
166.5p
Cheapest Today
Area Averages vs National
Petrol
140.7p
▼ 3.6p vs UK Avg
Super Unleaded
161.6p
▼ 0.5p vs UK Avg
Diesel
170.5p
▲ 4.6p vs UK Avg
Super Diesel
189.9p
▲ 3.4p vs UK Avg
All Fuel Stations in Porthmadog, Borth-y-Gest, Morfa Bychan, Penmorfa, Prenteg, Tremadog (LL49)
Frequently Asked Questions About Fuel in Porthmadog, Borth-y-Gest, Morfa Bychan, Penmorfa, Prenteg, Tremadog
As of 19 March 2026, the cheapest E10 petrol in Porthmadog, Borth-y-Gest, Morfa Bychan, Penmorfa, Prenteg, Tremadog is 134.9p at TESCO, TESCO STORES LTD, STRYD FAWR, PORTHMADOG, WALES.
There is currently a 8.0p difference between the cheapest and most expensive stations in Porthmadog, Borth-y-Gest, Morfa Bychan, Penmorfa, Prenteg, Tremadog. For a standard 55-litre family car, that equals a saving of £4.40 per tank.
We update prices daily using data provided directly by fuel stations via the Competition and Markets Authority (CMA) Open Data scheme. This is a UK Government initiative requiring all major retailers to report live prices, ensuring you see the most accurate data for the Gwynedd area.
Not today. TESCO is actually cheaper than local supermarkets in LL49. It's always worth comparing before filling up.
We are currently tracking 5 active fuel stations in the LL49 area, operated by 5 different brands including Shell, TESCO, ESSAR and more.
The cheapest B7 diesel in Porthmadog, Borth-y-Gest, Morfa Bychan, Penmorfa, Prenteg, Tremadog is currently 158.9p at TESCO. You can also use our interactive fuel map to compare diesel prices visually.
Nearby Locations
Prices sourced from the UK Government CMA Open Data Scheme, updated every 30 minutes. CheckFuelPrices is editorially independent — read our policy.