Live prices
Cheapest diesel (B7) in Monmouth
3 stations reporting diesel (B7), ranked cheapest first.
The cheapest reported diesel (B7) in Monmouth is £9.09 a gallon (199.9p per litre) at Shell, Cinderhill Street Overmonnow Road, Monmouth, Gwent (NP25 5EZ). The average across 3 forecourts currently reporting this grade is £9.15 a gallon (201.2p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £0.65 on a 50-litre fill. That local average is 5.0p per litre above the UK average of 196.2p.
The average is unchanged since yesterday. The average has risen 1.3p per litre since last week.
Prices last refreshed at 3:02pm on 20 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
| Station | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|
 Shell Overmonnow (NP25 5EZ)24hCinderhill Street Overmonnow Road, Monmouth, Gwent | £8.18179.9p | £9.09199.9p | £9.31204.9p | £10.22224.9p | 48 mins ago |
 Asda Monmouth North Express Petrol (NP25 4BG)24hA40 North Bound, Dingestow, Monmouth | £8.41184.9p | £9.18201.9p | £9.27203.9p | £10.04220.9p | 48 mins ago |
| Asda Monmouth South Express Petrol (NP25 4BR)24hA40 South Bound, Dingestow, Monmouth | £8.41184.9p | £9.18201.9p | £9.27203.9p | £10.04220.9p | 48 mins ago |
Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0) and checked every 30 minutes. Only stations reporting diesel (B7) appear here.
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Questions about diesel (B7) in Monmouth
- Where is the cheapest diesel (B7) in Monmouth?
- The cheapest reported diesel (B7) in Monmouth is 199.9p per litre at Shell, Cinderhill Street Overmonnow Road, Monmouth, Gwent (NP25 5EZ). The average across 3 forecourts reporting this grade is 201.2p per litre. Prices were last refreshed at 3:02pm on 20 September 2026 from official UK Government fuel price data.
- How many stations in Monmouth sell diesel (B7)?
- 3 forecourts in Monmouth currently report a price for diesel (B7) through the official UK fuel price open data scheme. Stations that do not sell or report this grade are not counted.