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:

J24 COLDRA TO J26 MALPAS
Description: M4WestboundJ24 (Newport) Coldra to J26 (Newport) MalpasCongestionDelay: s possible :,Start time: 08/12/2025 16:25 ,Expected end time:08/12/2025 19:25,Severity: Moderate,Source: Welsh Government,Last updated: 08/12/2025 16:25
Nearest town: 12.2 miles from Cardiff. CLEARED @ 16:42
NANTGARW
Description: A470NorthboundNantgarwCongestionoffslipDelay: s possible :,Start time: 08/12/2025 16:17 ,Expected end time:08/12/2025 18:16,Severity: Moderate,Source: Welsh Government,Last updated: 08/12/2025 16:17
Nearest town: 7.44 miles from Cardiff. CLEARED @ 16:30
A48 INTERCHANGE TO M4 J33 CAPEL LLANILLTERN
Description: A4232NorthboundA48 Interchange to M4 J33 Capel LlanillternCongestionDelay: s possible :,Start time: 08/12/2025 16:10 ,Expected end time:08/12/2025 18:09,Severity: Moderate,Source: Welsh Government,Last updated: 08/12/2025 16:10
Nearest town: 5.22 miles from Cardiff. CLEARED @ 16:18
BROADWAY INTERCHANGE
Description: A470SouthboundBroadway Interchange08/12/25-12/12/25 2000-0600onslipRoadworksClosed :,Start time: 08/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 16:00
Nearest town: 4.92 miles from Cardiff. CLEARED @ 16:30
J21 TO J23 ROGIET
Description: M4WestboundJ21 (Chepstow) to J23 (Chepstow) RogietRoadworksClosedDiversions in place09/12/25-10/12/25 2000-0600 :,Start time: 09/12/2025 20:00 ,End Date:10/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 16:10
Nearest town: 17.23 miles from Cardiff. CLEARED @ 16:30
UPPER BOAT
Description: A470SouthboundUpper BoatonslipRoadworksClosed09/12/25-12/12/25 2000-0600 :,Start time: 09/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 15:54
Nearest town: 8.62 miles from Cardiff. CLEARED @ 16:18
GLYNTAFF
Description: A470SouthboundGlyntaffonslipRoadworksClosed08/12/25-12/12/25 2000-0600 :,Start time: 08/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 15:57
Nearest town: 4.92 miles from Cardiff. CLEARED @ 16:18
NANTGARW
Description: A470NorthboundNantgarwonslipRoadworksClosedDiversions in place07/12/25-09/12/25 2000-0600 :,Start time: 07/12/2025 20:00 ,End Date:09/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 07/12/2025 20:00
Nearest town: 7.44 miles from Cardiff. CLEARED @ 15:54
NANTGARW
Description: A470NorthboundNantgarwoffslipRoadworksClosedDiversions in place07/12/25-09/12/25 2000-0600 :,Start time: 07/12/2025 20:00 ,End Date:09/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 07/12/2025 20:00
Nearest town: 7.44 miles from Cardiff. CLEARED @ 15:54
PENTREBACH TO ABERCANAID
Description: A4060Both directionsPentrebach to AbercanaidRoadworksClosedDiversions in place27/11/25-19/12/25 2000-0600 :,Start time: 27/11/2025 20:00 ,End Date:19/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 15:08
Nearest town: 18.9 miles from Cardiff. CLEARED @ 15:30
A4051 INTERCHANGE (CROES-Y-MWYALCH) TO TURNPIKE R/BOUT
Description: A4042NorthboundA4051 Interchange (Croes-y-Mwyalch) to Turnpike R/bout11/12/25-12/12/25 2000-0600ClosedRoadworks :,Start time: 11/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 14:40
Nearest town: 12.43 miles from Cardiff. CLEARED @ 15:18
CWMBRAN TO A4051 INTERCHANGE (CROES-Y-MWYALCH)
Description: A4042SouthboundCwmbran to A4051 Interchange (Croes-y-Mwyalch)08/12/25-12/12/25 2000-0600ClosedDiversions in place :,Start time: 08/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 14:58
Nearest town: 12.43 miles from Cardiff. CLEARED @ 15:18


There are no current incidents in this location.

Roadworks

ROAD WORKS
Location: The M5 northbound entry slip at junction J21 (Weston super Mare) .
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 8 Dec 2025 to 06:00 on 9 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 14.28 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J21 (Weston super Mare)and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 20:00 on 8 Dec 2025 to 06:00 on 9 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 14.36 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J21 (Weston super Mare)and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: From 21:00 on 8 Dec 2025 to 06:00 on 9 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 14.36 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 16:00 on 8 Dec 2025.
Nearest town: 16.66 miles from Cardiff. CLEARED @ 14:06
ROAD WORKS
Location: The M5 southbound between junctions J19 (Portishead)and J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: From 21:00 on 12 Dec 2025 to 06:00 on 13 Dec 2025.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 18.01 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound entry slip at junction J20 (Nailsea) .
Lane closures: Lane one will be closed.
Reason: Barrier repairs are planned.
Status: Pending.
Schedule: From 20:00 on 12 Dec 2025 to 06:00 on 13 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 14.52 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J22 (Burnham on Sea)and J21 (Weston super Mare) .
Reason: Horticultural works are planned.
Status: Pending.
Schedule: From 08:00 on 11 Dec 2025 to 16:00 on 11 Dec 2025.
Nearest town: 15.52 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J20 (Nailsea)and J19 (Portishead) .
Reason: Horticultural works are planned.
Status: Pending.
Schedule: Expect disruption everyday between 08:00 and 16:00 from 9 Dec 2025 to 10 Dec 2025.
Nearest town: 16.91 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 10 Dec 2025 to 06:00 on 11 Dec 2025.
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: From 21:00 on 10 Dec 2025 to 06:00 on 11 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 19.79 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J19 (Portishead)and J18 (Bristol) .
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 8 Dec 2025 to 12 Dec 2025.
Schedule: From 19:00 on 12 Dec 2025 to 09:00 on 13 Dec 2025.
Schedule: From 19:00 on 13 Dec 2025 to 10:00 on 14 Dec 2025.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 15 Dec 2025 to 19 Dec 2025.
Lanes Closed: There will be three of four lanes closed.
Nearest town: 19.99 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound at junction J19 (Portishead) .
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 8 Dec 2025 to 12 Dec 2025.
Schedule: From 19:00 on 12 Dec 2025 to 09:00 on 13 Dec 2025.
Schedule: From 19:00 on 13 Dec 2025 to 10:00 on 14 Dec 2025.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 15 Dec 2025 to 19 Dec 2025.
Lanes Closed: All lanes will be closed.
Nearest town: 19.62 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: Expect disruption everyday between 20:00 and 06:00 from 8 Dec 2025 to 10 Dec 2025.
Schedule: Expect disruption everyday between 21:00 and 06:00 from 10 Dec 2025 to 13 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 14.5 miles from Cardiff.
ROAD WORKS
Location: The M5 northbound between junctions J22 (Burnham on Sea)and J20 (Nailsea) .
Lane closures: Lanes 1 and 2 will be closed.
Reason: Roadworks are planned.
Status: Pending.
Schedule: Expect disruption everyday between 20:00 and 06:00 from 15 Dec 2025 to 19 Dec 2025.
Lanes Closed: There will be two of three lanes closed.
Nearest town: 15.26 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 8 Dec 2025 to 28 Mar 2026.
Schedule: From 20:00 on 28 Mar 2026 to 04:00 on 29 Mar 2026.
Schedule: Expect disruption everyday between 20:00 and 04:00 from 29 Mar 2026 to 1 Apr 2026.
Lanes Closed: There will be one of three lanes closed.
Nearest town: 14.54 miles from Cardiff.

Traffic in Nearby Villages

Cardiff

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Description: M4 : Westbound : J24 (Newport) Coldra to J26 (Newport) Malpas : Congestion : Delays possible :,Start time: 08/12/2025 16:25 ,Expected end time:08/12/2025 19:25,Severity: Moderate,Source: Welsh Government,Last updated: 08/12/2025 16:25
Nearest town: 12.2 miles from Cardiff.

51.6--2.96

Description: A470 : Northbound : Nantgarw : Congestion : offslip : Delays possible :,Start time: 08/12/2025 16:17 ,Expected end time:08/12/2025 18:16,Severity: Moderate,Source: Welsh Government,Last updated: 08/12/2025 16:17
Nearest town: 7.44 miles from Cardiff.

51.56--3.27

Description: A4232 : Northbound : A48 Interchange to M4 J33 Capel Llanilltern : Congestion : Delays possible :,Start time: 08/12/2025 16:10 ,Expected end time:08/12/2025 18:09,Severity: Moderate,Source: Welsh Government,Last updated: 08/12/2025 16:10
Nearest town: 5.22 miles from Cardiff.

51.49--3.29

Description: A470 : Southbound : Broadway Interchange : 08/12/25-12/12/25 2000-0600 : onslip : Roadworks : Closed :,Start time: 08/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 16:00
Nearest town: 4.92 miles from Cardiff.

51.53--3.25

Description: M4 : Westbound : J21 (Chepstow) to J23 (Chepstow) Rogiet : Roadworks : Closed : Diversions in place : 09/12/25-10/12/25 2000-0600 :,Start time: 09/12/2025 20:00 ,End Date:10/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 16:10
Nearest town: 17.23 miles from Cardiff.

51.59--2.81

Description: A470 : Southbound : Upper Boat : onslip : Roadworks : Closed : 09/12/25-12/12/25 2000-0600 :,Start time: 09/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 15:54
Nearest town: 8.62 miles from Cardiff.

51.58--3.29

Description: A470 : Southbound : Glyntaff : onslip : Roadworks : Closed : 08/12/25-12/12/25 2000-0600 :,Start time: 08/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 15:57
Nearest town: 4.92 miles from Cardiff.

51.53--3.25

Description: A470 : Northbound : Nantgarw : onslip : Roadworks : Closed : Diversions in place : 07/12/25-09/12/25 2000-0600 :,Start time: 07/12/2025 20:00 ,End Date:09/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 07/12/2025 20:00
Nearest town: 7.44 miles from Cardiff.

51.56--3.27

Description: A470 : Northbound : Nantgarw : offslip : Roadworks : Closed : Diversions in place : 07/12/25-09/12/25 2000-0600 :,Start time: 07/12/2025 20:00 ,End Date:09/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 07/12/2025 20:00
Nearest town: 7.44 miles from Cardiff.

51.56--3.27

Description: A4060 : Both directions : Pentrebach to Abercanaid : Roadworks : Closed : Diversions in place : 27/11/25-19/12/25 2000-0600 :,Start time: 27/11/2025 20:00 ,End Date:19/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 15:08
Nearest town: 18.9 miles from Cardiff.

51.72--3.36

Description: A4042 : Northbound : A4051 Interchange (Croes-y-Mwyalch) to Turnpike R/bout : 11/12/25-12/12/25 2000-0600 : Closed : Roadworks :,Start time: 11/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 14:40
Nearest town: 12.43 miles from Cardiff.

51.62--3

Description: A4042 : Southbound : Cwmbran to A4051 Interchange (Croes-y-Mwyalch) : 08/12/25-12/12/25 2000-0600 : Closed : Diversions in place :,Start time: 08/12/2025 20:00 ,End Date:12/12/2025 6:00,Severity: Road closure,Source: Welsh Government, Last updated: 06/12/2025 14:58
Nearest town: 12.43 miles from Cardiff.

51.62--3

Location: northbound entry slip at junction J21 (Weston super Mare) .

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 8 December 2025 to 06:00 on 9 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 14.28 miles from Cardiff.

51.36--2.89

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

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 20:00 on 8 December 2025 to 06:00 on 9 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.36 miles from Cardiff.

51.36--2.89

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

Lane Closures : Lane one will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : From 21:00 on 8 December 2025 to 06:00 on 9 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.36 miles from Cardiff.

51.42--2.85

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

Lane Closures : The hard shoulder is closed.

Due to: Roadworks.



Period : expect disruption until 16:00 on 8 December 2025.
Nearest town: 16.66 miles from Cardiff.

51.45--2.78

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

Lane Closures : Lane one will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : From 21:00 on 12 December 2025 to 06:00 on 13 December 2025.

Lanes Closed : There will be one of three lanes closed.
Nearest town: 18.01 miles from Cardiff.

51.46--2.75

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

Lane Closures : Lane one will be closed.

Due to: Barrier repairs are planned.

Status : Pending.

Schedule : From 20:00 on 12 December 2025 to 06:00 on 13 December 2025.

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

51.43--2.84

Location: northbound between junctions J22 (Burnham on Sea)and J21 (Weston super Mare) .

Due to: Horticultural works are planned.

Status : Pending.

Schedule : From 08:00 on 11 December 2025 to 16:00 on 11 December 2025.
Nearest town: 15.52 miles from Cardiff.

51.33--2.89

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

Due to: Horticultural works are planned.

Status : Pending.

Schedule : Expect disruption everyday between 08:00 and 16:00 from 9 December 2025 to 10 December 2025.
Nearest town: 16.91 miles from Cardiff.

51.45--2.78

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

Due to: Roadworks scheme is planned.

Status : Pending.

Schedule : From 21:00 on 10 December 2025 to 06:00 on 11 December 2025.
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 : From 21:00 on 10 December 2025 to 06:00 on 11 December 2025.

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

51.58--2.74

Location: northbound between junctions J19 (Portishead)and J18 (Bristol) .

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 8 December 2025 to 12 December 2025.

Schedule : From 19:00 on 12 December 2025 to 09:00 on 13 December 2025.

Schedule : From 19:00 on 13 December 2025 to 10:00 on 14 December 2025.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 December 2025 to 19 December 2025.

Lanes Closed : There will be three of four lanes closed.
Nearest town: 19.99 miles from Cardiff.

51.48--2.71

Location: northbound at junction J19 (Portishead) .

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 8 December 2025 to 12 December 2025.

Schedule : From 19:00 on 12 December 2025 to 09:00 on 13 December 2025.

Schedule : From 19:00 on 13 December 2025 to 10:00 on 14 December 2025.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 December 2025 to 19 December 2025.

Lanes Closed : All lanes will be closed.
Nearest town: 19.62 miles from Cardiff.

51.48--2.71

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 : Expect disruption everyday between 20:00 and 06:00 from 8 December 2025 to 10 December 2025.

Schedule : Expect disruption everyday between 21:00 and 06:00 from 10 December 2025 to 13 December 2025.

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

51.39--2.86

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

Lane Closures : Lanes 1 and 2 will be closed.

Due to: Roadworks are planned.

Status : Pending.

Schedule : Expect disruption everyday between 20:00 and 06:00 from 15 December 2025 to 19 December 2025.

Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.26 miles from Cardiff.

51.34--2.89

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 8 December 2025 to 28 March 2026.

Schedule : From 20:00 on 28 March 2026 to 04:00 on 29 March 2026.

Schedule : Expect disruption everyday between 20:00 and 04:00 from 29 March 2026 to 1 April 2026.

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

51.43--2.84