Traffic Merthyr Dyfan

SLIGHT
SEVERE
FULL SCREEN UPDATED: 14:27
×
×

Current traffic around Merthyr Dyfan

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

SOUTHBOUND
Description: A470Now clearSouthboundNantgarw to Coryton, Start time: 18/06/2026 11:00 , Expected end time: 18/06/2026 9:56, Severity: Moderate, Source: Welsh Government, Last updated: 18/06/2026 11:00
Nearest town: 9.01 miles from Merthyr Dyfan. CLEARED @ 11:06
EASTBOUND
Description: M4Now clearEastboundJ33 (Cardiff) Capel Llanilltern, Start time: 18/06/2026 10:05 , Expected end time: 18/06/2026 9:04, Severity: Moderate, Source: Welsh Government, Last updated: 18/06/2026 10:05
Nearest town: 6.59 miles from Merthyr Dyfan. CLEARED @ 10:18
J30 CARDIFF GATE
Description: M4EastboundJ30 (Cardiff) Cardiff GateCongestionoffslipDelay: s possible :, Start time: 18/06/2026 8:23 , Expected end time: 18/06/2026 11:23, Severity: Moderate, Source: Welsh Government, Last updated: 18/06/2026 8:23
Nearest town: 11.06 miles from Merthyr Dyfan. CLEARED @ 08:30


There are no current incidents in this location.

Roadworks


Traffic in Nearby Villages

Merthyr Dyfan

Let's Get Social

Get in touch with us or stay up to date with our latest news and updates.

Follow us on Facebook See Traffic Update on Twitter See our Pinterest Images View our Blog

Live Email Traffic Alerts

Get live email alerts whenever there is a traffic incident or roadworks on the on the roads you travel that may cause congestion or jams.

Sign up for free alerts

LEGAL NOTICE

Please remember that it is against the law to use your mobile phone, tablet or any electronic device without a hands-free kit whilst driving. If you're caught by the police using any device that can send or receive data whilst driving or riding a motorcyle you'll get an automatic fixed penalty notice, 6 points on your licence and a fine of £200. A court could also disqualify you from driving.

Elsewhere on the web:

National Highways TrafficNational Highways England

Official source of traffic updates.

Transport for LondonTransport for London (TFL)

Transport for London's (TfL) portal for transportation in London.

Traffic WalesTraffic Wales

The Welsh government's traffic information service for Wales.

Traffic ScotlandTraffic Scotland

Live traffic conditions and news for Scotland's road network.

Advertise on Traffic UpdateYOUR AD HERE

Advertise to millions of motorists, holidaymakers and commuters.

Description: A470 : Now clear : Southbound : Nantgarw to Coryton, Start time: 18/06/2026 11:00 , Expected end time: 18/06/2026 9:56, Severity: Moderate, Source: Welsh Government, Last updated: 18/06/2026 11:00
Nearest town: 9.01 miles from Merthyr Dyfan.

51.54--3.26

Description: M4 : Now clear : Eastbound : J33 (Cardiff) Capel Llanilltern, Start time: 18/06/2026 10:05 , Expected end time: 18/06/2026 9:04, Severity: Moderate, Source: Welsh Government, Last updated: 18/06/2026 10:05
Nearest town: 6.59 miles from Merthyr Dyfan.

51.51--3.31

Description: M4 : Eastbound : J30 (Cardiff) Cardiff Gate : Congestion : offslip : Delays possible :, Start time: 18/06/2026 8:23 , Expected end time: 18/06/2026 11:23, Severity: Moderate, Source: Welsh Government, Last updated: 18/06/2026 8:23
Nearest town: 11.06 miles from Merthyr Dyfan.

51.54--3.13