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Petrol Prices in Porthmadog

Average today: unleaded 169.2p · diesel 193.6p · UK average 169.4p / 191.1p

Checked 12 September 2026 · retailer-reported prices, changes filed within 30 minutes
Porthmadog trend: Unleaded ▲ 5.6p · 7d · Diesel ▲ 6.7p · 7d
The cheapest unleaded in Porthmadog today is 167.9p at Tesco, Tesco Stores Ltd. Filling a 55-litre tank at the cheapest station instead of the priciest saves about £1.10.

Cheapest Unleaded First

CheapestSet 11 Sep · Checked today
Tesco Tesco Stores Ltd, LL49 9NU
UNLEADED
167.9p
DIESEL
189.9p
Save up to £1.10 on a tank
Set 12 Sep · Checked today
Glanaber Garage Glanaber Garage, LL49 9TP
UNLEADED
169.9p
DIESEL
196.9p
Save up to £0.00 on a tank
Set 10 Sep · Checked today
Shell High Street, LL49 9LU
UNLEADED
169.9p
DIESEL
193.9p
Save up to £0.00 on a tank
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