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Petrol Prices in Caernarfon
Average today: unleaded 164.3p · diesel 185.6p ·
UK average 167.7p / 189.2p
Checked 10 September 2026 · retailer-reported prices, changes filed within 30 minutes
Caernarfon trend: Unleaded ▲ 4.6p · 7d · Diesel ▲ 4.3p · 7d
The cheapest unleaded in Caernarfon today is 157.9p
at Essar, London Garage Ltd, Cwm-y-glo, Caernarfon, Ll55 4de. Filling a 55-litre tank at the cheapest station instead of the priciest saves about £6.60.
Cheapest Unleaded First
CheapestSet 18 Aug · Checked today
Essar
London Garage Ltd, Cwm-y-glo, Caernarfon, Ll55 4de, LL55 4DE
Save up to £6.60 on a tank
Set 07 Sep · Checked today
Morrisons
Ffordd Y Gogledd (north Road), LL55 1BE
Save up to £4.51 on a tank
Set 07 Sep · Checked today
Texaco
Caer Service Station, South Road, Caernarfon, Ll55 2hp, LL55 2HP
Save up to £4.51 on a tank
Set 08 Sep · Checked today
Shell
Gwalia Garage Ltd, LL55 2SS
Costs £3.30 more to fill up
Set 09 Sep · Checked today
Texaco
Modurdy Dolydd Garage, Dolydd, Caernarfon, Ll54 7ef, LL54 7EF
Costs £4.95 more to fill up
Set 09 Sep · Checked today
Murco
Clynnog-fawr, LL54 5PF
Costs £5.50 more to fill up
Set 07 Sep · Checked today
Texaco
Beran Garage, LL55 3NF
Costs £6.60 more to fill up