Traffic Cardiff

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Current traffic around Cardiff

The following traffic incidents and congestion for Cardiff have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:

M4 ST JULIANS VIADUCT
Description: M4EastboundM4 St Julians Viaduct27/04/26-30/11/26 0600 :,Start time: 27/04/2026 6:00 ,End Date:30/11/2026 6:00,Severity: Moderate,Source: Welsh Government, Last updated: 27/04/2026 6:00
Nearest town: 12.11 miles from Cardiff. CLEARED @ 02:18


There are no current incidents in this location.

Roadworks

ROAD WORKS
Location: The M5 northbound entry slip at junction J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 9 May 2026 to 06:00 on 10 May 2026.
Lanes Closed: All lanes will be closed.
Nearest town: 14.52 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound at junction J20 (Nailsea) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 9 May 2026 to 06:00 on 10 May 2026.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 14.54 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound exit slip at junction J20 (Nailsea) .
Lane closures: Lane two will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 9 May 2026 to 06:00 on 10 May 2026.
Lanes Closed: There will be one of two lanes closed.
Nearest town: 14.46 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 9 May 2026 to 06:00 on 10 May 2026.
Lanes Closed: There will be two of four lanes closed.
Nearest town: 14.65 miles from Cardiff.
ROAD WORKS
Location: The M5 southbound between junctions J20 (Nailsea)and J21 (Weston super Mare) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 22:00 on 8 May 2026 to 06:00 on 9 May 2026.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 13 May 2026.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 13 May 2026 to 16 May 2026.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 18 May 2026 to 20 May 2026.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 14.5 miles from Cardiff.
ROAD WORKS
Location: The M5 southbound exit slip at junction J21 (Weston super Mare) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 22:00 on 8 May 2026 to 06:00 on 28 May 2026.
Nearest town: 14.15 miles from Cardiff.
ROAD WORKS
Location: The M5 southbound exit slip at junction J21 (Weston super Mare) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 22:00 on 8 May 2026 to 06:00 on 9 May 2026.
Schedule: Expect disruption everyday between 22:00 and 06:00 from 11 May 2026 to 16 May 2026.
Schedule: Expect disruption everyday between 22:00 and 06:00 from 18 May 2026 to 22 May 2026.
Schedule: Expect disruption everyday between 22:00 and 06:00 from 26 May 2026 to 28 May 2026.
Lanes Closed: All lanes will be closed.
Nearest town: 14.15 miles from Cardiff.
ROAD WORKS
Location: The M5 southbound between junctions J19 (Portishead)and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 5 May 2026 to 06:00 on 6 May 2026.
Schedule: From 21:00 on 7 May 2026 to 06:00 on 8 May 2026.
Schedule: From 22:00 on 8 May 2026 to 06:00 on 9 May 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 16.93 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 20:00 on 6 May 2026 to 06:00 on 12 May 2026.
Nearest town: 15.37 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Lane closures: Lanes 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 6 May 2026 to 8 May 2026.
Schedule: From 21:00 on 8 May 2026 to 06:00 on 9 May 2026.
Schedule: From 20:00 on 11 May 2026 to 06:00 on 12 May 2026.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 15.81 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Lane closures: Lanes 2,3 and 4 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 6 May 2026 to 8 May 2026.
Schedule: From 21:00 on 8 May 2026 to 06:00 on 9 May 2026.
Schedule: From 20:00 on 11 May 2026 to 06:00 on 12 May 2026.
Lanes Closed: There will be three of four lanes closed.
Nearest town: 15.37 miles from Cardiff.
ROAD WORKS
Location: The M4 eastbound between junctions J23 (Chepstow)and J22 (Avonmouth) .
Reason: Roadworks scheme is planned.
Status: Pending.
Schedule: From 21:00 on 5 May 2026 to 06:00 on 8 May 2026.
Nearest town: 19.79 miles from Cardiff.
ROAD WORKS
Location: The M4 eastbound between junctions J23 (Chepstow)and J22 (Avonmouth) .
Lane closures: Lanes 1,2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 5 May 2026 to 8 May 2026.
Lanes Closed: All lanes will be closed.
Nearest town: 19.79 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 5 May 2026 to 06:00 on 6 May 2026.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 16.11 miles from Cardiff.
ROAD WORKS
Location: The M5 southbound between junctions J19 (Portishead)and J20 (Nailsea) .
Lane closures: The hard shoulder is closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 17:00 on 8 May 2026.
Nearest town: 16.8 miles from Cardiff.
ROAD WORKS
Location: The M5 southbound between junctions J20 (Nailsea)and J22 (Burnham on Sea) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 5 May 2026 to 06:00 on 6 May 2026.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 6 May 2026 to 8 May 2026.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 14.5 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound at junction J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Emergency roadside drains works are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 04:00 from 4 May 2026 to 19 May 2026.
Schedule: From 21:00 on 19 May 2026 to 04:00 on 20 May 2026.
Schedule: Expect disruption everyday between 20:00 and 04:00 from 20 May 2026 to 10 Jun 2026.
Schedule: From 21:00 on 10 Jun 2026 to 04:00 on 11 Jun 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 14.54 miles from Cardiff.
ROAD WORKS
Location: The M5 southbound between junctions J19 (Portishead)and J20 (Nailsea) .
Lane closures: Lanes 2 and 3 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 5 May 2026 to 8 May 2026.
Lanes Closed: There will be two of four lanes closed.
Nearest town: 19.23 miles from Cardiff.
ROAD WORKS
Location: The M5 southbound at junction J19 (Portishead) .
Lane closures: Lanes 2 and 3 are closed.
Reason: Roadworks.
Status: Currently Active.
Period: expect disruption until 06:00 on 6 May 2026.
Lanes Closed: There are two of three lanes closed.
Nearest town: 19.89 miles from Cardiff.

Traffic in Nearby Villages

Cardiff

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Description: M4 : Eastbound : M4 St Julians Viaduct : 27/04/26-30/11/26 0600 :,Start time: 27/04/2026 6:00 ,End Date:30/11/2026 6:00,Severity: Moderate,Source: Welsh Government, Last updated: 27/04/2026 6:00
Nearest town: 12.11 miles from Cardiff.

51.6--2.98

Location: northbound entry slip at junction J20 (Nailsea) .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 9 May 2026 to 06:00 on 10 May 2026.

Lanes Closed : All lanes will be closed.
Nearest town: 14.52 miles from Cardiff.

51.43--2.84

Location: northbound at junction J20 (Nailsea) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 9 May 2026 to 06:00 on 10 May 2026.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.54 miles from Cardiff.

51.43--2.84

Location: northbound exit slip at junction J20 (Nailsea) .

Lane Closures : Lane two will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 9 May 2026 to 06:00 on 10 May 2026.

Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.46 miles from Cardiff.

51.43--2.84

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 9 May 2026 to 06:00 on 10 May 2026.

Lanes Closed : There will be two of four lanes closed.
Nearest town: 14.65 miles from Cardiff.

51.44--2.84

Location: southbound between junctions J20 (Nailsea)and J21 (Weston super Mare) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 22:00 on 8 May 2026 to 06:00 on 9 May 2026.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 13 May 2026.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 13 May 2026 to 16 May 2026.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 18 May 2026 to 20 May 2026.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.5 miles from Cardiff.

51.39--2.86

Location: southbound exit slip at junction J21 (Weston super Mare) .

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 22:00 on 8 May 2026 to 06:00 on 28 May 2026.
Nearest town: 14.15 miles from Cardiff.

51.37--2.89

Location: southbound exit slip at junction J21 (Weston super Mare) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 22:00 on 8 May 2026 to 06:00 on 9 May 2026.

Schedule : Expect disruption everyday between 22:00 and 06:00 from 11 May 2026 to 16 May 2026.

Schedule : Expect disruption everyday between 22:00 and 06:00 from 18 May 2026 to 22 May 2026.

Schedule : Expect disruption everyday between 22:00 and 06:00 from 26 May 2026 to 28 May 2026.

Lanes Closed : All lanes will be closed.
Nearest town: 14.15 miles from Cardiff.

51.37--2.89

Location: southbound between junctions J19 (Portishead)and J20 (Nailsea) .

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 5 May 2026 to 06:00 on 6 May 2026.

Schedule : From 21:00 on 7 May 2026 to 06:00 on 8 May 2026.

Schedule : From 22:00 on 8 May 2026 to 06:00 on 9 May 2026.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 16.93 miles from Cardiff.

51.45--2.78

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 20:00 on 6 May 2026 to 06:00 on 12 May 2026.
Nearest town: 15.37 miles from Cardiff.

51.44--2.82

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .

Lane Closures : Lanes 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 6 May 2026 to 8 May 2026.

Schedule : From 21:00 on 8 May 2026 to 06:00 on 9 May 2026.

Schedule : From 20:00 on 11 May 2026 to 06:00 on 12 May 2026.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.81 miles from Cardiff.

51.45--2.8

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .

Lane Closures : Lanes 2,3 and 4 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 6 May 2026 to 8 May 2026.

Schedule : From 21:00 on 8 May 2026 to 06:00 on 9 May 2026.

Schedule : From 20:00 on 11 May 2026 to 06:00 on 12 May 2026.

Lanes Closed : There will be three of four lanes closed.
Nearest town: 15.37 miles from Cardiff.

51.44--2.82

Location: eastbound between junctions J23 (Chepstow)and J22 (Avonmouth) .

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 21:00 on 5 May 2026 to 06:00 on 8 May 2026.
Nearest town: 19.79 miles from Cardiff.

51.58--2.74

Location: eastbound between junctions J23 (Chepstow)and J22 (Avonmouth) .

Lane Closures : Lanes 1,2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 5 May 2026 to 8 May 2026.

Lanes Closed : All lanes will be closed.
Nearest town: 19.79 miles from Cardiff.

51.58--2.74

Location: northbound between junctions J20 (Nailsea)and J19 (Portishead) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 5 May 2026 to 06:00 on 6 May 2026.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.11 miles from Cardiff.

51.45--2.8

Location: southbound between junctions J19 (Portishead)and J20 (Nailsea) .

Lane Closures : The hard shoulder is closed.

Due to: Roadworks.



Period : expect disruption until 17:00 on 8 May 2026.
Nearest town: 16.8 miles from Cardiff.

51.45--2.78

Location: southbound between junctions J20 (Nailsea)and J22 (Burnham on Sea) .

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 5 May 2026 to 06:00 on 6 May 2026.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 6 May 2026 to 8 May 2026.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.5 miles from Cardiff.

51.39--2.86

Location: northbound at junction J20 (Nailsea) .

Lane Closures : Lane one will be closed.

Due to: Emergency roadside drains works are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 04:00 from 4 May 2026 to 19 May 2026.

Schedule : From 21:00 on 19 May 2026 to 04:00 on 20 May 2026.

Schedule : Expect disruption everyday between 20:00 and 04:00 from 20 May 2026 to 10 June 2026.

Schedule : From 21:00 on 10 June 2026 to 04:00 on 11 June 2026.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.54 miles from Cardiff.

51.43--2.84

Location: southbound between junctions J19 (Portishead)and J20 (Nailsea) .

Lane Closures : Lanes 2 and 3 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 5 May 2026 to 8 May 2026.

Lanes Closed : There will be two of four lanes closed.
Nearest town: 19.23 miles from Cardiff.

51.48--2.72

Location: southbound at junction J19 (Portishead) .

Lane Closures : Lanes 2 and 3 are closed.

Due to: Roadworks.



Period : expect disruption until 06:00 on 6 May 2026.

Lanes Closed : There are two of three lanes closed.
Nearest town: 19.89 miles from Cardiff.

51.48--2.71