Fuel prices in Porthmadog

The cheapest unleaded in Porthmadog today is 174.9p a litre at Porthmadog Superstore - Petrol Filling Station (LL49 9NU). The average across 3 reporting stations is 176.2p, 2.0p above the UK average, and prices range up to 177.9p: a 3.0p gap between the cheapest and priciest. The cheapest diesel is 199.9p at Porthmadog Superstore - Petrol Filling Station (LL49 9NU), against a local average of 202.2p. Updated 17 Oct 2026, 09:32 UK time.

Lowest reported174.9pper litre

Local average176.2p3 reporting stations

Prices checked 21 hours ago 17 Oct, 09:32 UK time · individual prices may be older

Cheapest stations for Unleaded (E10)

Lowest reported price first.

Tesco Stores Ltd, Stryd Fawr, Porthmadog, LL49 9NU

Usually open nowPrice checked 17 Oct, 09:32

Directions ↗ Details →

Lowest listed 174.9p per litre

Mfg Porthmadog

High Street, Porthmadog, LL49 9LU

Usually open nowPrice checked 17 Oct, 09:32

Directions ↗ Details →

175.9p per litre

Glanaber Garage

Glanaber Garage, Borth-Y-Gest, Porthmadog, LL49 9TP

Usually closed nowPrice checked 17 Oct, 09:32

Directions ↗ Details →

177.9p per litre

Usual opening hours; bank holidays may differ.