UK fuel prices on 21 September 2026
Daily report for 21 September 2026. National averages, regional gaps and the biggest price moves from official UK Government Fuel Finder data.
Summary
UK pump prices were rising on 21 September 2026. The average litre of petrol (E10) cost 172.4p, up 0.2p on the day and up 2.7p on the week, while diesel averaged 196.6p (up 0.4p on the day, up 4.4p on the week). Diesel is 24.2p dearer than petrol. Northern Ireland was the cheapest region for petrol at 166.7p and South East the dearest at 173.9p, a gap of 7.2p a litre. Across the country 120 forecourt prices were cut and 2,194 went up compared with the day before.
Petrol E10: cheapest and dearest regions
| Region | Average |
|---|---|
| 🟢 Northern Ireland | 166.7p |
| Yorkshire & Humber | 170.9p |
| North East | 171.6p |
| Wales | 171.8p |
| North West | 171.8p |
| East Midlands | 172.3p |
| West Midlands | 172.8p |
| South West | 173.0p |
| East of England | 173.1p |
| London | 173.6p |
| Scotland | 173.7p |
| 🔴 South East | 173.9p |
Diesel: cheapest and dearest regions
| Region | Average |
|---|---|
| 🟢 Northern Ireland | 191.6p |
| Yorkshire & Humber | 195.9p |
| North West | 196.2p |
| Wales | 196.3p |
| East Midlands | 196.3p |
| North East | 196.8p |
| West Midlands | 196.9p |
| East of England | 197.0p |
| South West | 197.1p |
| South East | 197.7p |
| London | 197.8p |
| 🔴 Scotland | 197.9p |
Biggest petrol price drops
75 petrol prices cut in total
Biggest petrol price rises
945 petrol prices raised in total
Biggest diesel price drops
45 diesel prices cut in total
Biggest diesel price rises
1,249 diesel prices raised in total
Averages are trimmed means of forecourt prices at the last official snapshot of each UTC day. Implausible prices (more than 18p below or 45p above the regional median, likely entry errors) are excluded. Methodology.