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 scorching climate plan within the hope of conserving passengers as snug as potential.
TfL mentioned air con was in place on some traces 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 traces, which have the good temperatures (19.3C) on common.
London Overground and Elizabeth line trains are additionally conditioned however on older traces, it says it has launched “a variety of station cooling techniques together with industrial-sized followers and chiller models to pump in chilly air”.
Now Making Moves has predict which tube traces would be the hottest and coldest in 2025, to “aid you journey smarter, not tougher”.
The group submitted a Freedom of Data Request to Transport For London for grievance information regarding the traces being too scorching 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 traces would be the hottest and coldest for the rest of 2025.
Which tube traces would be the hottest this yr?
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Ross Lydall
The Victoria Line has the best most predicted temperature for 2025, and is about to succeed in a sweltering 32C within the peak of the heatwave. From 2021 to 2024, the Victoria Line has constantly recorded the common hottest temperature, with a median of 28.1C for all the of 2024 and final yr acquired probably the most quantity of complaints from fed up, scorching 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 certainly one of London’s oldest and deepest traces so it’s no shock that the restricted air flow out there 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 Fort station
Southwark Council
The Bakerloo Line is about to see the third highest temperatures for the Underground.
Consultants predict most temperatures of 30.1C through the summer time months within the capital right here.
The road has seen 4 complaints in complete since 2022 due to insufferable temperatures.

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Ross Lydall
This line is anticipated 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 larger on complaints than the Bakerloo line, regardless of being barely cooler.

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Ross Lydall
It’s nonetheless scorching 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 anticipate 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 Avenue station in central London (Jonathan Brady/PA)
PA Archive
This line is about 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 anticipated within the coming days which may 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 best on our checklist – the Waterloo and Metropolis Line, which connects many overground stations, is anticipated 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.