Diesel prices in Monmouth

Compare current diesel (B7) across 3 Monmouth forecourts. Check the lowest listed price, local average and map before choosing where to fill up.

Lowest listed diesel forecourt in Monmouth

201.9p/l

Lowest listed diesel price in Monmouth

Asda Monmouth North Express Petrol3.8 mi from Monmouth centre

Directions Station details

Diesel local average: 202.2p/l
Local forecourts: 3
UK comparison: Above

Prices checked 20 Oct 2026, 07:32

Live local prices

Current diesel prices in Monmouth

3 current diesel (B7) prices from 3 Monmouth forecourts listed as stocking diesel.

Prices checked 20 Oct 2026, 07:32. Individual rows show when that forecourt price was reported.

Current diesel prices in Monmouth. Ranked by Diesel (B7) price.
Forecourt	Postcode and report	Diesel(B7), selected ranking	Distancefrom Monmouth centre	Opening times	Actions
1Asda Monmouth North Express PetrolAsda	NP25 4BGReported 18 Sept 2026, 18:25	201.9pCheapest	Distance: 3.8 mi	Open 24 hoursMonday - Sunday: 24 hours; Bank holidays: 24 hours	Details
2Asda Monmouth South Express PetrolAsda	NP25 4BRReported 18 Sept 2026, 20:32	201.9pCheapest	Distance: 4.3 mi	Open 24 hoursMonday - Sunday: 24 hours; Bank holidays: 24 hours	Details
3Shell OvermonnowShell	NP25 5EZReported 16 Oct 2026, 14:43	202.9p	Distance: 0.6 mi	Open 24 hoursMonday - Sunday: 24 hours; Bank holidays: 24 hours	Details

How to read this page

About diesel prices in Monmouth

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

Monmouth has 3 forecourts listed as stocking diesel (B7), with current prices available from 3. 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.

204p200p195p

Average price

202.2p/l

20 Sept to 19 Oct

30-day low: 199.9p/l
30-day high: 204.9p/l
Movement (30 days): +1p/l
Volatility: Low

Jerry's diesel trend read

Diesel in Monmouth rose 1p/l, from 201.2p/l on 20 September to 202.2p/l on 19 October. The rise was not continuous: prices briefly fell 0.7p/l from 15 October to 16 October before moving higher again. Monmouth's current average is 3.1p/l above 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.

Asda Monmouth North Express Petrol

201.9p/l today

0.3p/l below Monmouth average today

Near cheapest: Within 1p on 17 of 30 days
Daily cheapest: Cheapest on 17 of 30 days
Average gap: 0.9p/l average gap
Evidence: 30 of 30 days reported

Directions Station details

Asda Monmouth North Express Petrol stayed within 1p/l of the daily cheapest diesel price on 17 of 30 reported days, averaging 0.9p/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

1p/l

201.9p/l cheapest, 202.9p/l highest

Cheapest versus local average: £0.16 less than the local average on a 55-litre fill
Cheapest versus highest: £0.55 maximum listed difference on a 55-litre fill

Comparing current diesel prices in Monmouth can avoid paying up to 1p/l more than the cheapest listed price.

Diesel (B7) compared with nearby locations

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

Pontypool has the lowest nearby average shown at 197.9p; it is 4.3p/l cheaper than Monmouth.

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

201.9p to 202.2p2 stations

202.2p to 202.6p0 stations

202.6p to 202.9p1 station

The largest group of reporting diesel forecourts in Monmouth sits in the 201.9p to 202.2p range.

Cheapest station consistency

Supermarkets and other forecourts

Supermarkets: 201.9p/l
Major brands: 202.9p/l
Independent forecourts: No price

Named local evidence: Asda, 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
Asda	2 stations	201.9p/l	0.9p/l	17 of 30 days	57%

Asda had the smallest 30-day average gap to the daily cheapest diesel price at 0.9p/l, with a cheapest station present on 17 of 30 days.

Areas with the cheapest diesel in Monmouth

1Coed-y-fedw1 reporting, 1 below average201.9p/l
2Joyford1 reporting, 1 below average201.9p/l
3Chippenham1 reporting, 0 below average202.9p/l

Good to know

Fuel price FAQs for Monmouth

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 Monmouth today?

The cheapest listed diesel (B7) price in Monmouth is 201.9p/l at Asda Monmouth North Express Petrol. Check the table before travelling because distance, opening status and recent updates can affect the best choice.

How are Monmouth 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 Monmouth below the UK average?

Diesel is above the UK average by 3.1p/l. These comparisons use current location averages and the latest benchmark data available to the page.

How recent are the Monmouth fuel prices on this page?

Prices checked 20 Oct 2026, 07:32. Individual prices can remain unchanged between checks until a retailer reports a price change.

Why do some Monmouth 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 Monmouth?

Nearby comparisons currently show Usk at 199.9p/l, 2.3p/l cheaper than Monmouth, Chepstow at 198.3p/l, 3.9p/l cheaper than Monmouth and Abergavenny at 199.6p/l, 2.6p/l cheaper than Monmouth. Compare Usk, Chepstow, Abergavenny and Caldicot.

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, 07:32. See how we qualify and compare prices

Retailer reporting target: 30 minutes