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Full list of London trains cancelled amid punishing 34C heatwave

Published July 9, 2026 · Updated July 9, 2026 · By William Anderson

London Rail Network Faces Major Disruption as Temperatures Soar

Full list of London trains cancelled - Commuters across the capital are encountering significant travel challenges as an intense heatwave grips London. The soaring temperatures are creating widespread problems for rail services throughout the city, with many trains operating at reduced speeds as mercury levels climb toward 35 degrees Celsius in the metropolitan area.

Extreme weather conditions present multiple threats to railway infrastructure. Steel tracks can reach temperatures exceeding 50 degrees Celsius even when the surrounding air sits at a more moderate 30 degrees. This thermal expansion causes rails to buckle, while overhead electric cables may sag under their own weight. Additionally, lineside fires have become increasingly common during such periods of intense heat.

London officially satisfied the meteorological criteria for a heatwave on Monday evening. This designation followed three consecutive days where temperatures remained above 28 degrees Celsius. Rather than easing, the oppressive heat is projected to intensify as the week progresses toward its conclusion.

Great Western Railway Services Affected

Great Western Railway has implemented several measures to manage the challenging conditions. Between 9:30am and 9pm on Wednesday, GWR trains will operate direct connections between Reading and London Paddington in both directions. The operator has also announced that certain services traveling from London Paddington to Oxford will not run at all due to the extreme temperatures.

Under normal circumstances, GWR runs four trains per hour between Paddington and Oxford. However, Wednesday's schedule has been significantly altered. Every service departing Oxford on the hour has been cancelled, along with trains leaving Paddington at 23 minutes past each hour. Passengers holding tickets for these services have been informed that their fares will be accepted without additional charges on CrossCountry services connecting Banbury, Oxford, and Reading from 2pm onwards.

Those whose trains have been cancelled may utilize their tickets on either of the two services immediately before or after their original journey. Even if these alternative options are peak-time services or carry less flexibility, customers can still travel using their original ticket at no extra cost. While GWR has not yet finalized service levels for Thursday, they have strongly encouraged passengers to travel only when absolutely necessary.

East Midlands Railway Implements Travel Restrictions

East Midlands Railway has advised customers to limit their journeys to Wednesday, Thursday, or Friday, and only when travel is essential. The operator has confirmed that heat-related problems are impacting various services across their network, with some train units being withdrawn from service entirely.

Consequently, trains on multiple routes throughout the EMR network face either complete cancellation or revised timetables. This disruption particularly affects Intercity services operating to and from London St Pancras International. Passengers are being urged to verify their journey details before departing.

For those affected, tickets purchased for Wednesday can alternatively be used on EMR services between Saturday July 11 and Tuesday July 14. Travel experts strongly recommend passengers journey before 12pm when temperatures are expected to be more manageable. Individuals who no longer wish to travel under these conditions can obtain a complete, fee-free refund directly from their point of purchase.

Additional Network Disruptions

Southern services are experiencing complications arising from a signalling fault located between Tattenham Corner and Coulsdon Town in Croydon. This technical issue is forcing trains to operate at reduced speeds on several lines, with disruption anticipated to continue until 6pm.

Another signalling problem is creating delays between Petts Wood and Orpington in Bromley. Some trains in this area may experience delays of up to 20 minutes as a result.

c2c has confirmed that specific trains will cease operations on Thursday July 9 and Friday July 10 due to the ongoing heatwave conditions.

London Northwestern Railway is also dealing with heat-related challenges affecting portions of their service. Between Bletchley and Bedford, buses are substituting for trains until approximately 6:30pm on Wednesday. Passengers should anticipate that these replacement vehicles may be busier than normal and are advised to allow additional time for their journeys.

Passengers have been advised that tickets will be accepted at no extra cost on CrossCountry services between Banbury, Oxford and Reading from 2pm onwards.