M25 Traffic on Wednesdays
In the middle of the week the M25 usually shows its regular shape: the morning and evening peaks around the airports and the big interchanges with the M1, M4, M3, M23, M20 and M11.
Here you can see whether the latest Wednesday followed that shape. Each chart runs from midnight to midnight for one direction, and the cards say where any stop-start traffic was.
M25 on Wednesdays: Wednesday 21 October 2026, so far
How traffic on the M25 has moved hour by hour today so far, compared with the same day a week earlier (Wednesday 14 October 2026) and with National Highways’ usual speed for each hour. Updated every five minutes.
Speeds are colour-coded the same way as our live M25 speed flow map: 50 mph and over, 30 mph to 49 mph, under 30 mph. The colour shows the speed actually achieved; the usual speed is shown in bold beside it.
average 45 mph across the road, against a usual 47 mph; the same hour last week 47 mph.
average 46 mph across the road, against a usual 50 mph; the same hour last week 53 mph.
J3–J4 7 mph, against a usual 60 mph.
J28–J29 6 mph, against a usual 57 mph.
J12–J13 traffic below 15 mph somewhere on this stretch for about 105 minutes (1.75 hours), between 00:00 (midnight) and 04:00 (4am).
slower than last Wednesday: average 56 mph over 23 hours, against 58 mph in the same hours.
J27–J28 traffic below 15 mph somewhere on this stretch for about 225 minutes (3.75 hours), between 00:00 (midnight) and 09:00 (9am).
slower than last Wednesday: average 55 mph over 23 hours, against 57 mph in the same hours.
Clockwise: average speed by hour
Anticlockwise: average speed by hour
© 2026 Corporate Ace Limited. The analysis, wording, charts and conclusions on this page are our own, produced from the live information we collect, including National Highways’ data. You may not copy, republish or reproduce them on any website, app, broadcast or publication without our prior written permission, which must set out how and where they will be used. To ask, please contact us. Powered by National Highways’ Transport Data Feeds.
The M25 on Other Days
- M25 on Mondays
Hour by hour, clockwise and anticlockwise - M25 on Tuesdays
Hour by hour, clockwise and anticlockwise - M25 on Thursdays
Hour by hour, clockwise and anticlockwise - M25 on Fridays
Hour by hour, clockwise and anticlockwise - M25 on Saturdays
Hour by hour, clockwise and anticlockwise - M25 on Sundays
Hour by hour, clockwise and anticlockwise
For the road right now, see the live M25 speed flow map and the latest M25 traffic news, or look up any junction on the M25 junctions page.