Diesel prices in Caernarfon

Compare current diesel (B7) across 7 Caernarfon forecourts. Check the lowest listed price, local average and map before choosing where to fill up.

Lowest listed diesel forecourt in Caernarfon

195.9p/l

Lowest listed diesel price in Caernarfon

Dolydd2.3 mi from Caernarfon centre

Directions Station details

Diesel local average: 197.7p/l
Local forecourts: 7
UK comparison: Below

Prices checked 20 Oct 2026, 08:10

Live local prices

Current diesel prices in Caernarfon

7 current diesel (B7) prices from 7 Caernarfon forecourts listed as stocking diesel.

Prices checked 20 Oct 2026, 08:10. Individual rows show when that forecourt price was reported.

Current diesel prices in Caernarfon. Ranked by Diesel (B7) price.
Forecourt	Postcode and report	Diesel(B7), selected ranking	Distancefrom Caernarfon centre	Opening times	Actions
1DolyddTexaco	LL54 7EFReported 16 Oct 2026, 10:28	195.9pCheapest	Distance: 2.3 mi	Hours vary by dayMonday: 07:00 - 20:30; Tuesday: 07:00 - 20:30; Wednesday: 07:00 - 20:30; Thursday: 07:00 - 20:30; Friday: 07:00 - 20:30; Saturday: 08:00 - 20:30; Sunday: 08:00 - 20:30; Bank holidays: 08:00 - 20:30	Details
2Mfg Morrisons CaernarfonMorrisons	LL55 1BEReported 16 Oct 2026, 22:28	196.7p	Distance: 2.2 mi	06:00 - 23:00 dailyMonday - Sunday: 06:00 - 23:00; Bank holidays: 06:00 - 23:00	Details
3Caer Service StationTexaco	LL55 2HPReported 14 Oct 2026, 09:34	196.9p	Distance: 1.6 mi	06:00 - 21:00 dailyMonday - Sunday: 06:00 - 21:00; Bank holidays: 06:00 - 21:00	Details
4MClynnog Service StationMurco	LL54 5PFReported 19 Oct 2026, 16:21	196.9p	Distance: 8.4 mi	06:00 - 22:00 dailyMonday - Sunday: 06:00 - 22:00; Bank holidays: 06:00 - 22:00	Details
5Gwalia Garage Caernarfon LimitedShell	LL55 2SSReported 11 Oct 2026, 11:40	197.9p	Distance: 0.9 mi	06:30 - 22:00 dailyMonday - Sunday: 06:30 - 22:00; Bank holidays: 06:30 - 22:00	Details
6ELondon garage service stationEssar	LL55 4DEReported 12 Oct 2026, 09:04	199.9p	Distance: 3.7 mi	Hours vary by dayMonday: 06:30 - 20:00; Tuesday: 06:30 - 20:00; Wednesday: 06:30 - 20:00; Thursday: 06:30 - 20:00; Friday: 06:30 - 20:00; Saturday: 06:30 - 20:00; Sunday: 07:00 - 19:30; Bank holidays: 07:00 - 20:00	Details
7Beran Filling StationTexaco	LL55 3NFReported 19 Sept 2026, 12:55	199.9p	Distance: 5.3 mi	Open 24 hoursMonday - Sunday: 24 hours; Bank holidays: 24 hours	Details

How to read this page

About diesel prices in Caernarfon

Coverage, freshness and comparison scope matter as much as the headline price.

Caernarfon has 7 forecourts listed as stocking diesel (B7), with current prices available from 7. The table ranks forecourts by current diesel (B7) price, with distance and station name used to order equal or unavailable prices. Station status, distance and update freshness remain visible for comparison.

This page focuses on Diesel (B7) using official UK Fuel Finder data, local averages, regional benchmarks and UK average comparisons where coverage is available.

Thirty-day evidence

Thirty-day diesel (B7) price trend

Thirty-day diesel (B7) trends, local comparisons and potential savings from official UK Fuel Finder data.

201p198p194p

Average price

197.7p/l

20 Sept to 19 Oct

30-day low: 188.9p/l
30-day high: 199.9p/l
Movement (30 days): +2.7p/l
Volatility: Low

Jerry's diesel trend read

Diesel in Caernarfon rose 2.7p/l, from 195p/l on 20 September to 197.7p/l on 19 October. The wider move is up, although prices turned downward in the latest stretch, falling 1.3p/l from 12 October to 19 October. Caernarfon's current average is 1.4p/l below the UK average. Daily movement volatility is low.

Consistency, not just today's lowest

A consistently competitive diesel forecourt

This recommendation requires at least 21 completed reporting days and a current price no higher than the local average.

Caer Service Station

196.9p/l today

0.8p/l below Caernarfon average today

Near cheapest: Within 1p on 6 of 30 days
Daily cheapest: Cheapest on 2 of 30 days
Average gap: 7.1p/l average gap
Evidence: 30 of 30 days reported

Directions Station details

Caer Service Station stayed within 1p/l of the daily cheapest diesel price on 6 of 30 reported days, averaging 7.1p/l above the daily cheapest price.

Price choice

Potential diesel savings

Cheapest versus average is the practical comparison. Cheapest versus highest is the maximum listed difference, not a guaranteed saving.

Current local price range

4p/l

195.9p/l cheapest, 199.9p/l highest

Cheapest versus local average: £0.99 less than the local average on a 55-litre fill
Cheapest versus highest: £2.20 maximum listed difference on a 55-litre fill

Comparing current diesel prices in Caernarfon can avoid paying up to 4p/l more than the cheapest listed price.

Diesel (B7) compared with nearby locations

Ranked by current average diesel price. Caernarfon is highlighted so the local baseline remains easy to find.

Llangefni has the lowest nearby average shown at 195.8p; it is 1.9p/l cheaper than Caernarfon.

Local market evidence

Diesel market in this location

Distribution, station consistency and forecourt type provide different evidence. None is treated as a guarantee of the next pump price.

Price distribution

195.9p to 196.9p2 stations

196.9p to 197.9p2 stations

197.9p to 198.9p1 station

198.9p to 199.9p2 stations

The largest group of reporting diesel forecourts in Caernarfon sits in the 195.9p to 196.9p range.

Cheapest station consistency

Supermarkets and other forecourts

Supermarkets: 196.7p/l
Major brands: 197.9p/l
Independent forecourts: No price

Named local evidence: Morrisons, Shell.

Where value persists

Diesel brand reliability over 30 days

Historical claims render only when the documented reporting thresholds are met.

Diesel brand reliability over 30 days
Brand	Stations	30-day average	Average gap	Cheapest presence	Below local average
Texaco	3 stations	198.8p/l	7.9p/l	6 of 30 days	18%

Texaco had the smallest 30-day average gap to the daily cheapest diesel price at 7.9p/l, with a cheapest station present on 6 of 30 days.

Areas with the cheapest diesel in Caernarfon

1Dolydd1 reporting, 1 below average195.9p/l
2Caeathro3 reporting, 2 below average196.7p/l
3Clynnog Fawr1 reporting, 1 below average196.9p/l
4Cwm-y-glo1 reporting, 0 below average199.9p/l
5Rhiwen1 reporting, 0 below average199.9p/l

Good to know

Fuel price FAQs for Caernarfon

Use the current local evidence to choose a forecourt, compare nearby places and understand how coverage and freshness affect the figures.

Where is the cheapest diesel (B7) in Caernarfon today?

The cheapest listed diesel (B7) price in Caernarfon is 195.9p/l at Dolydd. Check the table before travelling because distance, opening status and recent updates can affect the best choice.

How are Caernarfon diesel (B7) forecourts ranked?

Forecourts are ranked by their current diesel (B7) price first. If prices are tied or unavailable, the table uses distance and station name. Use the forecourt comparison to sort and inspect the current results.

Are diesel (B7) prices in Caernarfon below the UK average?

Diesel is below the UK average by 1.4p/l. These comparisons use current location averages and the latest benchmark data available to the page.

How recent are the Caernarfon fuel prices on this page?

Prices checked 20 Oct 2026, 08:10. Individual prices can remain unchanged between checks until a retailer reports a price change.

Why do some Caernarfon forecourts not show a current diesel (B7) price?

A forecourt can be listed when it is known to stock diesel (B7), even if there is not a current reported price available for that fuel. The price table keeps those stations visible but prioritises forecourts with current prices.

Should I compare nearby locations before filling up in Caernarfon?

Nearby comparisons currently show Llanfairpwllgwyngyll at 200.9p/l, 3.2p/l more expensive than Caernarfon, Bangor at 198.9p/l, 1.2p/l more expensive than Caernarfon and Llangefni at 195.8p/l, 1.9p/l cheaper than Caernarfon. Compare Llanfairpwllgwyngyll, Bangor, Llangefni and Porthmadog.

How can I compare fuel prices around my current location?

Use cheapest diesel near me for a distance-led comparison based on your current position.

Built on real fuel-price data

Prices are sourced from the UK Government Fuel Finder scheme. Prices checked 20 Oct 2026, 08:10. See how we qualify and compare prices

Retailer reporting target: 30 minutes