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A3(M) southbound traffic at 21:21 on Sunday 18 October: no major incidents reported — live National Highways updates every 5 minutes, 24/7.
This page tracks live A3(M) traffic southbound only — every incident, closure and roadworks National Highways publish for the southbound carriageway, updated every 5 minutes, 24 hours a day. Anything they list without naming a direction is shown here too, so nothing is missed.
Heading the other way? See A3(M) northbound traffic. The full A3(M) traffic page covers both directions, with the live map, junction-by-junction status, the latest A3(M) videos and tonight's A3(M) roadworks.
No — as of 21:21 National Highways list no full closure on the A3(M) southbound. Live updates every 5 minutes.
None reported at 21:21 — the live board above updates every 5 minutes, 24 hours a day.
Nothing is listed right now — when the board above is clear, slow southbound traffic is usually rush-hour volume (07:00–09:00 and 16:30–18:30 on weekdays).
None scheduled as of 21:21. Overnight closures usually run from around 21:00–22:00 to 06:00 — this page lists them the moment National Highways publish them.
Right here — this page is live A3(M) traffic for the southbound carriageway, updated every 5 minutes from National Highways, 24 hours a day. The full A3(M) page covers both directions with the live map and junction-by-junction status.
The whole southbound carriageway, end to end — the A3(M) runs between Horndean and Havant (A27). The northbound side has its own page.
Daily A3(M) incidents, posted across all four channels.
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Broken down on the A3(M)? Pick the nearest town and call a local firm direct:
On a motorway? If you can, get onto the hard shoulder or into an emergency area, leave by the left-hand doors and wait behind the barrier. Stuck in a live lane: stay in the car with your seatbelt on and hazard lights on, and call 999.