M25

M25 Traffic on Sundays

Sunday brings the return journey back round London: people coming home from the coast and the airports, and visitors heading back up the M1, M11 or M40.

This page shows the most recent Sunday hour by hour in both directions. The afternoon and evening hours are the ones to compare with the Sunday before.

← Saturdays All M25 trends Mondays →

M25 on Sundays: Sunday 18 October 2026

How traffic on the M25 has moved hour by hour, compared with the same day a week earlier (Sunday 11 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.

09:00 (9am)

Anticlockwise · slowest hour against usual

average 62 mph across the road, against a usual 60 mph.

15:00 (3pm)

Anticlockwise · slowest stretch

J1A–J1B 9 mph, against a usual 30 mph.

17:00 (5pm)

Clockwise · slowest stretch

J30–J31 17 mph, against a usual 52 mph.

20:00 (8pm)

Clockwise · slowest hour against usual

average 59 mph across the road, against a usual 58 mph.

Across the day

Clockwise · stop-start

J30–J31 traffic below 15 mph somewhere on this stretch for about 125 minutes (2.08 hours), between 00:00 (midnight) and 19:00 (7pm).

Clockwise · against last week

quicker than last Sunday: average 63 mph over 3 hours, against 59 mph in the same hours.

Anticlockwise · stop-start

J1A–J1B traffic below 15 mph somewhere on this stretch for about 90 minutes (1.5 hours), between 14:00 (2pm) and 19:00 (7pm).

Anticlockwise · against last week

quicker than last Sunday: average 63 mph over 3 hours, against 61 mph in the same hours.

Clockwise: average speed by hour

Anticlockwise: average speed by hour

Sunday 18 October 2026Sunday 11 October 2026usual speed (National Highways)

How we worked this out. We regularly take National Highways’ live speed data for each stretch of the M25 and keep the average for each hour. These figures cover 24 hours of Sunday 18 October 2026 and 3 of Sunday 11 October 2026 (hours with no readings are left out). Hours are UK time. A speed shown for the whole road is the average across its stretches, so a short queue may not move it much: the cards point to the slowest stretches.

© 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

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.