London’s risk from rising temperatures

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Discussion | Coping with hot weather in London

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The summer of 2022 saw temperatures above 40°C, the highest ever recorded in England. Climate change could bring hotter, drier summers in London, with longer, more intense heatwaves.

City Hall’s Climate Adaptation team wants to hear your experience to help inform London’s first Heat Risk Delivery Plan. 

Join the conversation 

 Thinking back to the heatwave of 2022: 

  • How did you cope with the heat in London?  
  • What helped you stay cool at home or while you were out and about? 
  • What made it better, and what made it worse?  

Thinking of this summer:  

  • What, if anything, are you doing differently to cope with the heat in London? 
  • What, if anything, does London need to help you cope with the heat? 

Please share as much detail as you can. Eleanor and Annette from City Hall’s Climate Adaptation team will be reading your comments and joining in.  

About the action plan

The London Heat Risk Delivery Plan will set out the roles and responsibilities our city needs to manage heat risk. The recommendation for this action plan came out of last year’s London Climate Resilience Review.  

Between March and September 2025, Londoners and stakeholders are invited to help inform the action plan. Read more on our background page.

 

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Comments (533)

Avatar for -

The elderly and those on alcohol or drug addiction programmes are especially vulnerable at time of extreme heat or cold.

Avatar for - Sumatran elephant

London Underground all year round is terrible. Especially the Victoria and Northern line. I wish all tubes had ac like the Elizabeth line. As a regular tube user, the temperatures even in the winter are extremely uncomfortable. And someone...

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London Underground all year round is terrible. Especially the Victoria and Northern line. I wish all tubes had ac like the Elizabeth line. As a regular tube user, the temperatures even in the winter are extremely uncomfortable. And someone needs to sort out what is causing all that heat at Tottenham Court Road station! 

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Avatar for - Monarch butterfly

central line too! the tube is a nightmare and i dont understand why money is going into the new lines (suffragette, mildmay etc.) when the existing routes have so many issues

 

buses are also extremely hot after school when they are packed to...

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central line too! the tube is a nightmare and i dont understand why money is going into the new lines (suffragette, mildmay etc.) when the existing routes have so many issues

 

buses are also extremely hot after school when they are packed to the max

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Avatar for - Sumatran elephant

It’s a shame to see investment on unnecessary projects like remaking the overground. 

Also, it using the bus so much easier if there were more school routes introduced like the 606, 626 etc. I’ve noticed when these buses are running there’s...

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It’s a shame to see investment on unnecessary projects like remaking the overground. 

Also, it using the bus so much easier if there were more school routes introduced like the 606, 626 etc. I’ve noticed when these buses are running there’s more space on the other buses. Food for thought but it’d be nice to see something done about the buses as well. 

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Avatar for - Monarch butterfly

absolutely, the school buses help a lot of us get to/from school faster and provide us with more options if we miss a bus!

also at an all girls school, having some of those buses just for us helps to avoid some other schoolkids from nearby...

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absolutely, the school buses help a lot of us get to/from school faster and provide us with more options if we miss a bus!

also at an all girls school, having some of those buses just for us helps to avoid some other schoolkids from nearby schools saying/doing things which make girls uncomfortable

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Avatar for - Sumatran elephant

That day in 2022 took a toll me on me physically and mentally. I felt so fatigued and powerless, I spent the day sleeping in the living room because it’s the coolest room in the house. London homes, or any UK home, aren’t unfortunately...

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That day in 2022 took a toll me on me physically and mentally. I felt so fatigued and powerless, I spent the day sleeping in the living room because it’s the coolest room in the house. London homes, or any UK home, aren’t unfortunately built for summer. British winters are harsh, but so are summers, but unfortunately we can’t have both. Americans got lucky with their AC; with most being able to heat and cool their homes, but the electricity bill must be high. 

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Avatar for - Sumatran elephant

Green infrastructure and nature based solutions along with landscape architecture and policy focused on circular economy and climate adaptation should become more rigid 

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Green infrastructure and nature based solutions along with landscape architecture and policy focused on circular economy and climate adaptation should become more rigid 

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Avatar for - Sumatran elephant

The current housing infrastructure and most of the wider transportation infrastructure in London has not been built up for heatwaves. Carpets and lack of air conditioning make the situation worse. Air fans and getting away from London was...

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The current housing infrastructure and most of the wider transportation infrastructure in London has not been built up for heatwaves. Carpets and lack of air conditioning make the situation worse. Air fans and getting away from London was the only way to escape the heat

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Avatar for - Adelie penguin

After completing the survey I would have liked to see more questions about public transport! One of the things that make the heat unbearable in london is how hot the buses and tubes get. 

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After completing the survey I would have liked to see more questions about public transport! One of the things that make the heat unbearable in london is how hot the buses and tubes get. 

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Avatar for -

Yes: cooling public transport is probably the main way officialdom can help.

Avatar for - Adelie penguin

I have three suggestions. 

Firstly, all windows should be double glazed. I recently saw on Hackneys planning portal that an application to put in double glazing on a house was rejected because it was in a conservation area! Councils should...

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I have three suggestions. 

Firstly, all windows should be double glazed. I recently saw on Hackneys planning portal that an application to put in double glazing on a house was rejected because it was in a conservation area! Councils should not be allowed to ban double glazing like this, anyone should be able to put it in without a planning application.


Next, we should encourage the use of external roller shutters. These are used in all homes in Europe, we should learn from them. External blinds keep homes far more insulated than internal ones.


Lastly external bi-directional heat pumps (aka air conditioners) should be encouraged, and allowed to be installed without planning permission. These can be used to heat houses with green energy in the winter and cool homes in summer. 

 

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Avatar for - Sumatran elephant

Yet another survey designed and manipulated to get only the results they want to hear. If this is supposed to be a forum to allow people to have a say but not allowing anyone to vote for the use of air conditioning is hardly democracy in...

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Yet another survey designed and manipulated to get only the results they want to hear. If this is supposed to be a forum to allow people to have a say but not allowing anyone to vote for the use of air conditioning is hardly democracy in action. I completely understand the environmental impacts but in many cases it is the only option that actually works. The National Grid in the summer months is overwhelming powered by majority renewables and zero carbon sources so grow up and allow us to vote like adults rather than arrogantly dictating the options.

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Avatar for - Colombian spotted frog

All of the pre-populated responses were just fluff around the edges, which was disappointing to see. I was hoping this was going to get feedback to support the obvious and only real solution: relaxing planning rules on air conditioning and...

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All of the pre-populated responses were just fluff around the edges, which was disappointing to see. I was hoping this was going to get feedback to support the obvious and only real solution: relaxing planning rules on air conditioning and expanding it as much as possible to workplaces, public buildings, etc. and having it as standard in all new builds.

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Avatar for - Polar bear

I draw blinds in the day and open windows at night. I’d like to install shutters. I leave out water for wildlife and add water to cat food. I don’t go out at the hottest times. I seek shade. I water new trees that my council has planted. I...

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I draw blinds in the day and open windows at night. I’d like to install shutters. I leave out water for wildlife and add water to cat food. I don’t go out at the hottest times. I seek shade. I water new trees that my council has planted. I save water from when my shower is warming up and use it to water plants in the evening. I keep hydrated. I rail against Trump and oil / plastic companies who put ridiculously high profits before everything else. Congestion zones should be bigger. New builds should have solar and pv windows. Car parks should have solar. Tax the fuck out of SUVs that take up too much space and sporty engines.

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Avatar for - Sumatran elephant

Thanks for caring about the public opinion.

Among the many things, we should look into a better system of ventilation on public transport for both summer and winter - on a single day this week I went from artic temperatures on only one...

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Thanks for caring about the public opinion.

Among the many things, we should look into a better system of ventilation on public transport for both summer and winter - on a single day this week I went from artic temperatures on only one carriage of a Southern train to tropical climate on a bus in South West London, where all its tiny little windows were open while the air con was full blast spitting out hot air. I could say the same, on reverse, for a journey I make on a cold winter day.

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Avatar for - Koala

I have recently purchased a new build. The developer was incentivised by the government to add a heat pump system for climate reasons.


If you know anything about heat pumps, you’d know they can be reverse cycle. They add and subtract heat.


In...

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I have recently purchased a new build. The developer was incentivised by the government to add a heat pump system for climate reasons.


If you know anything about heat pumps, you’d know they can be reverse cycle. They add and subtract heat.


In the UK, you can only be subsidised for one that adds heat. Even though functionally and in terms of energy they’re identical.


Our homes are still designed to trap heat, yet our ability to rid ourselves of it is impossible. 

I’ve spent £15,000 adding reverse cycle air conditioning to my home (yes, it’s less than a year old & the system I added can add heat too).


This is ridiculous. Legislation around this is ridiculous. And frankly, people will start dying or leaving because of how insane this is. 

Please update the building standards so that heat extraction is equally important and controllable as heat collection. 
 

The world is hotter now. Snow doesn’t fall as often in London.


We must adapt. FYI I’m Australian and think this is bonkers.

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Our house 60s-built house has huge windows that face the sun from dawn to dusk. It is unbearable upstairs, particularly as we are in our late 70s. But the Scheme of Management where we live won't allow changes that affect the look of the...

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Our house 60s-built house has huge windows that face the sun from dawn to dusk. It is unbearable upstairs, particularly as we are in our late 70s. But the Scheme of Management where we live won't allow changes that affect the look of the property to mitigate the effect of the heat, e.g. external shutters. We have triple glazing, solar window film, blackout blinds and blackout curtains but still upstairs is unbearable. Of course we follow common sense and keep everything closed until the sun has gone down, and only then do we open the windows. I am very concerned for our well-being.

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Avatar for - Adelie penguin

Lack of drinking water refill stations particularly in the underground and around London make traveling feel really dangerous, trains get so hot I have had to get off due to the heat on numerous occasions for health reasons access to water...

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Lack of drinking water refill stations particularly in the underground and around London make traveling feel really dangerous, trains get so hot I have had to get off due to the heat on numerous occasions for health reasons access to water at each station would make a massive difference

 

Thank you

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Avatar for - Monarch butterfly

PS: Why can people get a grant for an air-water heat pump but not for air-air?

Avatar for - Monarch butterfly

Last year I installed just one air-air heat pump which serves my bedroom and my study. It cost less than £5,000. It is fantastic! I will be saving up for another as I feel sorry for any guests in the spare room! Given that our health can be...

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Last year I installed just one air-air heat pump which serves my bedroom and my study. It cost less than £5,000. It is fantastic! I will be saving up for another as I feel sorry for any guests in the spare room! Given that our health can be affected adversely when the temperature is above 25 degrees this was a brilliant investment. I always have green electricity so in the winter I can use it for heating and in the summer for cooling. 

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Avatar for - Colombian spotted frog

Need a wide variety of urban interventions.

Plenty of leafy trees, shaded bus stops, water fountain features, drinking water points, effective fans on TFL, cool spaces in public buildings.

Funding to repair and maintain the above points.

Avatar for -

Increased green infrastructure is key. SuDS, tree planting, depaving pointless concrete areas, green roofs and walls, etc. Trees offer invaluable refuge and cool the air against the brutal heat in cities. Also, as a regular year-round lido...

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Increased green infrastructure is key. SuDS, tree planting, depaving pointless concrete areas, green roofs and walls, etc. Trees offer invaluable refuge and cool the air against the brutal heat in cities. Also, as a regular year-round lido user I'd love to see investment in more quality 50m pools. They are great for mental and physical well-being and offer a rare way to cope in the intense heat.  

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Avatar for - Vaquita

Why do TFL not have a mandatory tree planting programme for red routes in and around London already? We have been raising this with TFL for many years but our requests have been ignored year after year.

Avatar for - Rhino

We need to stop making such a big deal of the heat. Air Con on tubes would be great though. 

The climate crisis is real, and needs to be fixed at source with the Net Zero transition. We don't need City Hall funding community events, or...

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We need to stop making such a big deal of the heat. Air Con on tubes would be great though. 

The climate crisis is real, and needs to be fixed at source with the Net Zero transition. We don't need City Hall funding community events, or running advertising campaigns about carrying water. Our bodies tell us when we are hot. 

I would rather the money is spent on more police so that when the weather is hot, and we go to the park, or head to a blue space, that we feel safe doing so. Not at risk of having our phones stolen or our women at risk of sexual abuse. 

If you want people to use public spaces better to cope with the heat, make them safe spaces - not in a woke way - in a literal way. More police presence etc. 

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Avatar for - Monarch butterfly

I agree on FUNCTIONIGAir con on Tubes and buses.


Timeline

STAGE: Evidence gathering

Launch of the London Climate Resilience Review

Happened

London’s changing climate

Happened
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Londoners have responded 927 times

Find out more
STAGE: Programme launched

London Climate Resilience Review is published with a recommendation to create the London Heat Risk Delivery Plan

Happened
STAGE: You said, we did

Report on impacts of climate change published

Happened
Read our update
STAGE: Evidence gathering

London Heat Risk Delivery Plan programme launches

Happened
STAGE: Evidence gathering

March-September 2025: Stakeholder engagement to help inform the London Heat Risk Delivery Plan (including here on Talk London)

Happened

Shaping London's Heat Plan

Happening now
-

Londoners have responded 2497 times

Start the survey
STAGE: Programme design

September 2025 - March 2026: Drafting of the London Heat Risk Delivery Plan

Happened
STAGE: Programme launched

Spring 2026: Publication of the London Heat Risk Delivery Plan

Happened