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M4 Traffic

M4 Overhead Signs

0Accidentsnone reported on the M4 that we are aware of1Roadworks activelive on the M4 right now — see details18Plannedscheduled on the M4 — see details

Live M4 traffic data from National Highways · updated 04:42 (4:42am) Mon 26 Oct 2026

M4

What the M4 overhead signs are showing

This page shows what the M4 overhead signs are displaying right now — the electronic message signs National Highways use to warn drivers about closures, queues, hazards and journey times. They are listed junction by junction, in the direction of travel, for both carriageways.

Each message shows when National Highways last set it and how long ago. Signs can warn about a road ahead, so a message may be about a road you join later. We take road-closed messages off this page 12 hours, and other messages 2 hours, after National Highways last set them.

M4 overhead signs now

25 overhead message signs on the M4 are showing right now.

Checked 04:42 (4:42am) Mon 26 Oct 2026 Each message shows when National Highways last set it, and how long ago.

Two kinds of traffic information. This page shows what the overhead message signs on the M4 are displaying. Our latest traffic news shows National Highways’ incident and roadworks reports. Each can carry something the other does not, so we show both and label which is which - check both before you travel.

19 messages on this page

M4 Westbound Message Signs (J3 → J14)

In junction order, in the direction of travel.

  • Report of obstruction

    WarningWestboundBetween J3 & J4

    03:50 (3:50am)26 Oct 2026set 52 min ago✓ Checked by us 04:42 (4:42am)

    REPORT OF
    OBSTRUCTION

    Overhead Message

    WhereM4 westbound, at J3 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J5 4 mins J6 7 mins J8 11 mins

    Journey timeWestboundBetween J4 & J4B

    04:36 (4:36am)26 Oct 2026set 6 min ago✓ Checked by us 04:42 (4:42am)

    J5 4 MINS
    J6 7 MINS
    J8 11 MINS

    Overhead Message

    WhereM4 westbound, at J4 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J13 12 MINS J15 32 MINS

    Journey timeWestboundBetween J12 & J13

    04:31 (4:31am)26 Oct 2026set 10 min ago✓ Checked by us 04:42 (4:42am)

    J13 12 MINS
    J15 32 MINS

    Overhead Message

    WhereM4 westbound, at J12 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J13 10 MINS J15 30 MINS

    Journey timeWestboundBetween J12 & J13

    04:31 (4:31am)26 Oct 2026set 10 min ago✓ Checked by us 04:42 (4:42am)

    J13 10 MINS
    J15 30 MINS

    Overhead Message

    WhereM4 westbound, at J12 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J15 14 MINS J18 42 MINS

    Journey timeWestboundBetween J13 & J14

    04:33 (4:33am)26 Oct 2026set 8 min ago✓ Checked by us 04:42 (4:42am)

    J15 14 MINS
    J18 42 MINS

    Overhead Message

    WhereM4 westbound, at J13 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J15 10 MINS J18 38 MINS

    Journey timeWestboundBetween J14 & J15

    04:33 (4:33am)26 Oct 2026set 8 min ago✓ Checked by us 04:42 (4:42am)

    J15 10 MINS
    J18 38 MINS

    Overhead Message

    WhereM4 westbound, at J14 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

    • M4 Eastbound Message Signs (J18 → J4B)

    In junction order, in the direction of travel.

  • J17 3 MINS J15 21 MINS

    Journey timeEastboundBetween J18 & J172 signs here

    03:57 (3:57am)26 Oct 2026set 44 min ago✓ Checked by us 04:42 (4:42am)

    J17 3 MINS
    J15 21 MINS

    Overhead Message

    WhereM4 eastbound, at J18 · on 2 signs
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J15 7 MINS J13 26 MINS

    Journey timeEastboundBetween J17 & J162 signs here

    04:30 (4:30am)26 Oct 2026set 11 min ago✓ Checked by us 04:42 (4:42am)

    J15 7 MINS
    J13 26 MINS

    Overhead Message

    WhereM4 eastbound, at J17 · on 2 signs
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J15 5 MINS J13 25 MINS

    Journey timeEastboundBetween J16 & J153 signs here

    04:32 (4:32am)26 Oct 2026set 9 min ago✓ Checked by us 04:42 (4:42am)

    J15 5 MINS
    J13 25 MINS

    Overhead Message

    WhereM4 eastbound, at J16 · on 3 signs
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J13 19 MINS J12 31 MINS

    Journey timeEastboundBetween J15 & J14

    04:33 (4:33am)26 Oct 2026set 9 min ago✓ Checked by us 04:42 (4:42am)

    J13 19 MINS
    J12 31 MINS

    Overhead Message

    WhereM4 eastbound, at J15 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J13 11 MINS J12 23 MINS

    Journey timeEastboundBetween J15 & J14

    04:36 (4:36am)26 Oct 2026set 5 min ago✓ Checked by us 04:42 (4:42am)

    J13 11 MINS
    J12 23 MINS

    Overhead Message

    WhereM4 eastbound, at J15 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J13 6 MINS J11 22 MINS

    Journey timeEastboundBetween J14 & J13

    04:33 (4:33am)26 Oct 2026set 8 min ago✓ Checked by us 04:42 (4:42am)

    J13 6 MINS
    J11 22 MINS

    Overhead Message

    WhereM4 eastbound, at J14 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J13 4 MINS J11 21 MINS

    Journey timeEastboundBetween J14 & J13

    04:37 (4:37am)26 Oct 2026set 4 min ago✓ Checked by us 04:42 (4:42am)

    J13 4 MINS
    J11 21 MINS

    Overhead Message

    WhereM4 eastbound, at J14 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J11 6 MINS J8 18 MINS

    Journey timeEastboundBetween J13 & J122 signs here

    04:34 (4:34am)26 Oct 2026set 7 min ago✓ Checked by us 04:42 (4:42am)

    J11 6 MINS
    J8 18 MINS

    Overhead Message

    WhereM4 eastbound, at J13 · on 2 signs
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J8 17 mins J4B 27 mins

    Journey timeEastboundBetween J12 & J11

    04:19 (4:19am)26 Oct 2026set 22 min ago✓ Checked by us 04:42 (4:42am)

    J8 17 MINS
    J4B 27 MINS

    Overhead Message

    WhereM4 eastbound, at J12 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J8 12 mins J4B 22 mins

    Journey timeEastboundBetween J11 & J102 signs here

    04:19 (4:19am)26 Oct 2026set 22 min ago✓ Checked by us 04:42 (4:42am)

    J8 12 MINS
    J4B 22 MINS

    Overhead Message

    WhereM4 eastbound, at J11 · on 2 signs
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • J4 4 MINS J3 6 MINS J1 14 MINS

    Journey timeEastboundBetween J5 & J4B

    04:35 (4:35am)26 Oct 2026set 6 min ago✓ Checked by us 04:42 (4:42am)

    J4 4 MINS
    J3 6 MINS
    J1 14 MINS

    Overhead Message

    WhereM4 eastbound, at J5 · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • Report of obstruction

    WarningEastboundAt J4B

    04:29 (4:29am)26 Oct 2026set 12 min ago✓ Checked by us 04:42 (4:42am)

    REPORT OF
    OBSTRUCTION

    Overhead Message

    WhereM4 eastbound, at J4B · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

  • Report of obstruction

    WarningEastboundBetween J4B & J4

    04:29 (4:29am)26 Oct 2026set 12 min ago✓ Checked by us 04:42 (4:42am)

    REPORT OF
    OBSTRUCTION

    Overhead Message

    WhereM4 eastbound, at J4B · on 1 sign
    We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

    • Source: National Highways’ overhead message signs, as at 04:42 (4:42am) Mon 26 Oct 2026. This page shows the messages on the M4. Powered by National Highways’ Transport Data Feeds.

    About the M4 overhead signs

    The messages on this page come from National Highways’ own feed of the electronic signs above and beside the M4. We show them exactly as National Highways set them. A sign can be switched to a new message at any moment, so always follow the signs you can see on the road. For accidents, closures and roadworks see our Latest M4 Traffic News page.

    M4traffic.co.uk is dedicated to the latest M4 traffic news, checked every five minutes, 24 hours a day. The M4 meets the M25 at Junction 4b near Heathrow and the M5 near Bristol — see M25 Traffic and M5 Traffic.