The London Underground can simply prime 30 levels in summer time months, however now information has confirmed which line is the formally the most well liked
During the most recent heatwave, Transport for London was pressured to place in place a complete sizzling climate plan within the hope of maintaining passengers as comfy as potential.
TfL stated air con was in place on some strains and urged passengers to hold water and to “look out for one another whereas travelling”.
Bosses say 40% of trains throughout the community have air con, together with the Circle, Hammersmith & Metropolis, District and Metropolitan strains, which have the good temperatures (19.3C) on common.
London Overground and Elizabeth line trains are additionally conditioned however on older strains, it says it has launched “a variety of station cooling methods together with industrial-sized followers and chiller models to pump in chilly air”.
Now Making Moves has predict which tube strains would be the hottest and coldest in 2025, to “provide help to journey smarter, not tougher”.
The group submitted a Freedom of Data Request to Transport For London for criticism information referring to the strains being too sizzling or chilly, made between 2022 and March 2025 after which obtained from Transport for London by way of the London Datastore for particular person tube temperature information from 2013 to 2024.
Information science fashions had been then utilised as a way to predict which strains would be the hottest and coldest for the rest of 2025.
Which tube strains would be the hottest this yr?
Journeys on the London Underground are two per cent greater than final yr
Ross Lydall
The Victoria Line has the very best most predicted temperature for 2025, and is ready to achieve a sweltering 32C within the peak of the heatwave. From 2021 to 2024, the Victoria Line has constantly recorded the typical hottest temperature, with a median of 28.1C for your entire of 2024 and final yr acquired essentially the most quantity of complaints from fed up, sizzling and bothered commuters.
In 2024, there have been 19 official complaints made, adopted by 30 in 2023 and 29 in 2022.

Nigel Howard / Night Customary
Subsequent up for sweaty journeys is the Central Line in second place with the second highest most predicted temperature for 2025, more likely to peak at 31.4C in August.
Central Line is one in every of London’s oldest and deepest strains so it’s no shock that the restricted air flow accessible contributes to creating this line being one of many hottest.
This line ranked second for complaints additionally.In 2024 it had 9 complaints adopted by 3 in 2023 and seven in 2022.
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The Bakerloo Line at Elephant and Fortress station
Southwark Council
The Bakerloo Line is ready to see the third highest temperatures for the Underground.
Consultants predict most temperatures of 30.1C in the course of the summer time months within the capital right here.
The road has seen 4 complaints in whole since 2022 due to insufferable temperatures.

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Ross Lydall
This line is predicted to see a most predicted temperature underground of 29.1C within the coming months, leaving the road in fourth place for warm and sweaty journeys.
The road acquired 15 warmth associated complaints since 2022, rating the road greater on complaints than the Bakerloo line, regardless of being barely cooler.

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Ross Lydall
It’s nonetheless sizzling on right here, however practically 4 levels cooler than the most well liked Line.
Piccadilly line is a central serving line, and really effectively used with consultants saying they count on it to get to a most temperature of 27.7C quickly.
The road has had 8 warmth associated complaints for the reason that begin of 2022 to 2024.

A Jubilee line Underground practice in Bond Road station in central London (Jonathan Brady/PA)
PA Archive
This line is ready to see a most temperature of 26.2C on the most well liked days of the yr, which consultants consider we’re but to see.
A heatwave is predicted within the coming days which might see the new underground temperature hit.
The road has acquired 10 warmth complaints since 2022 – three in 2024, 5 in 2023 and two in 2022.

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Ross Lydall
The good on our record – the Waterloo and Metropolis Line, which connects many overground stations, is predicted to see most temperatures of 25.1C.
This line additionally tops the desk for the good so far as complaints go, and has acquired zero complaints about warmth ranges during the last 4 years.

