Smoke on South Western Railway track leads to train cancellations in London

South Western Railway has cancelled several services due to smoke reported on tracks between London Waterloo and Vauxhall, with safety inspections prompting delays on other lines. Commuters face disruptions as temperatures rise to 34°C, marking an unprecedented heat for May.

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Smoke on South Western Railway track leads to train cancellations in London

Get you up to speed: London trains cancelled after smoke spotted on the track during heatwave | News UK

Smoke was reported on a South Western Railway train track between London Waterloo and Vauxhall stations, leading to cancellations and delays in service. South Western Railway confirmed the situation and stated that trains may be delayed by up to 30 minutes while safety inspections are conducted.

South Western Railway (SWR) is conducting safety inspections on affected lines, which may lead to further delays. Disruption is anticipated to persist throughout the day as temperatures in London are expected to reach up to 34°C.

South Western Railway (SWR) has confirmed service cancellations and warned of further disruption due to high temperatures and smoke reported on the tracks, affecting connections to London Waterloo and other regions. Commuters are advised that delays may continue until the end of the day as safety inspections are conducted and operational measures are assessed.

What remains unclear — It is unknown whether the smoke reported on the South Western Railway track is directly related to the high temperatures.

Smoke on South Western Railway track leads to train cancellations in London

Passengers at Euston station in London following train cancellations as high temperatures have brought severe disruption to rail services. Picture date: Wednesday July 20, 2022. PA Photo. See PA story WEATHER Heatwave Transport. Photo credit should read: Yui Mok/PA Wire
South Western Railway (SWR) confirmed they have cancelled some services after smoke was reported on the track (Picture: PA)

Commuters are continuing to suffer in today’s heatwave after smoke was spotted on a South Western Railway train track between London Waterloo and Vauxhall stations.

South Western Railway (SWR) confirmed they have cancelled some services after smoke was reported on the track.

Trains on other lines are also being forced to run slower than usual while a safety inspection takes place.

Delays are expected to and from London Waterloo and Guildford, Woking, Chessington South, Dorking, Hampton Court, Shepperton, and Strawberry Hill.

SWR did not say whether the incident is related to high temperatures.

And it is not just the smoke. SWR said it had already cancelled a number of services scheduled today to ‘help minimise any potential disruption’ from the hot weather.

It warned that this may affect journeys between London Waterloo and Weymouth via Winchester, Southampton, and Bournemouth, and between London Waterloo and Aldershot via Woking and Guildford.

Commuters board a train at Bank underground station during a heat wave in London, UK, on Monday, June 30, 2025. A high-pressure system combined with a stream of super-hot air from North Africa and abnormally warm oceans is baking the region from Portugal to the UK. Photographer: Betty Laura Zapata/Bloomberg via Getty Images
South Western Railway (SWR) confirmed they have cancelled some services after smoke was reported on the track (Picture: Bloomberg via Getty Images)

They said: ‘Hot weather means trains across the South Western Railway network may be cancelled, delayed by up to 30 minutes or revised.

‘Disruption is expected until the end of the day.’

It comes after a record for the highest daily minimum temperature for May was set overnight, making it a ‘tropical night’.

Temperatures did not fall below 21.3°C at Kenley Airfield, south London, breaking the record for the highest daily minimum temperature in May.

Latest London news

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The mercury is expected to climb as high as 34°C in London today after the hottest day of May was recorded yesterday at 34.8°C.

The previous record was set in 1944, when Britain was baked by 32.8°C.

Forecasters described the heat as ‘unprecedented for the time of year,’ stressing that temperature records are typically broken by only fractions of a degree.

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