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 (253)

Avatar for - Sea turtle

How did we survive the heat? We are extremely lucky in that we have one room in our home with air conditioning and we all just stayed in there. I took my children out of school because it just isn’t prepared to deal with extreme heat. Small...

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How did we survive the heat? We are extremely lucky in that we have one room in our home with air conditioning and we all just stayed in there. I took my children out of school because it just isn’t prepared to deal with extreme heat. Small incredibly warm classrooms and playgrounds with little shade are just awful for little children.


Like many have said here, in extreme heat we don’t use public transport- you just can’t the heat is too painful. So you have to use a car. 

The city needs complete overhaul with the knowledge that sadly it is just going to get warmer. Schools and public transport need to be fit for the future. 

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Avatar for - Staghorn coral

TFL should stop introducing heat producing screen advertising panels on escalators and platforms on the underground. They waste energy and add to the heat Load.


More seating is needed on underground platforms for elderly and disabled, who...

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TFL should stop introducing heat producing screen advertising panels on escalators and platforms on the underground. They waste energy and add to the heat Load.


More seating is needed on underground platforms for elderly and disabled, who may struggle to cope with high temperatures.

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Avatar for - Staghorn coral

London needs more trees for more shade and cleaner air.

Avatar for - Adelie penguin

I wish this survey had included options relating to net zero/global heating, as our continued high carbon emissions are the reason why heat is becoming an increasing problem in this country. So anything to do with better insulation in homes...

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I wish this survey had included options relating to net zero/global heating, as our continued high carbon emissions are the reason why heat is becoming an increasing problem in this country. So anything to do with better insulation in homes, the green energy transition, increasing the use of heat pumps, getting people out of cars, etc would be options worth including here alongside the mitigation possibilities mentioned.

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Avatar for -

Yes. Insulate, retrofit insulation, please. We live in an old Victorian block of flats with no insulation, no property cavity between layers of brick of external walls. In some places there is only one layer of brick. Cold in winter, oven...

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Yes. Insulate, retrofit insulation, please. We live in an old Victorian block of flats with no insulation, no property cavity between layers of brick of external walls. In some places there is only one layer of brick. Cold in winter, oven in summer. Landlord is not going to insulate inside our outside. Inside because some flats are too small, it would make the rooms even smaller. Outside, because of the difficulties and the cost. This is a major housing association, thousands of older properties. Residents cannot get grants for insulation themselves, do not qualify as they are HA tenants. Nor can they afford to insulate their homes themselves. Abandoned and ignored.

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Avatar for - Staghorn coral

Shade trees make all the difference.

Avatar for - Staghorn coral

I do get it about public. Transport being too hot, but I find driving in slow moving traffic even worse, myself. I have to drive to work, all different places, and a bad journey can make a job not sustainable, or at least an unpleasant...

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I do get it about public. Transport being too hot, but I find driving in slow moving traffic even worse, myself. I have to drive to work, all different places, and a bad journey can make a job not sustainable, or at least an unpleasant experience. On the bus I can move, cover up a bit, put a wet cloth on my neck etc, but when I’m stuck behind a wheel I feel trapped. 

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Avatar for -

I have read a lot of the comments here and can only shake my head! If temperatures keep rising then massive changes will need to be made by everybody.

I have spent nearly half my life living and working overseas in places such as Dubai...

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I have read a lot of the comments here and can only shake my head! If temperatures keep rising then massive changes will need to be made by everybody.

I have spent nearly half my life living and working overseas in places such as Dubai, Cairo, Malta and Sumatra. In all those locations some form of air conditioning seemed vital for my residence, office and transport. Now that I am living full time in the UK I have an a/c in my car and two air to air heat pumps in my house. One in my bedroom and one in my sitting room. Although they were initially installed for heating they also work as good a/cs in the summer. I am now considering installing a big heat pump to provide all my heating but also my cooling in the hot weather. It is sad that this feature of heat pumps i.e. that they also can work as cooling pumps is never emphasised in their sales literature.

Public transport should all become electric so that it can run proper a/c

All public spaces need to be evaluated to ensure that there is adequate shading. e.g. All those areas of glass in buildings needs coating with a reflective coating to reduce heat gain inside.

All buildings need to be properly insulated to keep the heat out otherwise heat/cool pumps will be less effective.

If everybody used heat pumps to heat and cool themselves polluting gas burning would be vastly decreased and electricity usage would be much more efficient.

This will cost a fortune and we need to start now. This can only be done on a community basis as so many individuals cannot afford the cost of converting their homes. Local area heating and cooling schemes are needed throughout London.

When it gets cold you can put on more clothes to try to keep warm.

When it gets hot you need to have cooling provided as you cannot find it in your wardrobe!

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Avatar for -

And we need to make sure that the old Victorian blocks of flats are not left out of insulation retrofitting. It should be mandatory for landlords to do this.

Avatar for -

How is insulation going to keep you cool? You also need to have a big source of cooling in each apartment. As i said earlier, this will cost a fortune but there is no real alternative.

Avatar for -

grahamecain - insulation can keep flats cooler in summer as well as warmer in winter. In some places there what looks like only one layer of bricks on external walls, eg under windows. Mould all winter on those areas. Problem for us is the...

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grahamecain - insulation can keep flats cooler in summer as well as warmer in winter. In some places there what looks like only one layer of bricks on external walls, eg under windows. Mould all winter on those areas. Problem for us is the huge windows, but when desperate we cover those with white sheets, and with pillowcases with pieces of mylar sheets inside them. 

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Avatar for -

What Londoners need to cope with heat:

  • Councils and freeholders should no longer be entitled to make outright refusals for AC (air con) installation applications from their residents/long leaseholders - including in listed buildings. While...
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What Londoners need to cope with heat:

  • Councils and freeholders should no longer be entitled to make outright refusals for AC (air con) installation applications from their residents/long leaseholders - including in listed buildings. While heritage is important - it is useless if it is harmful to people living/working inside. Likewise freeholders shouldn't be allowed to refer to long lease agreements to completely refuse such installations from their lessees - instead freeholders must offer a reasonable alternative if they refuse an original AC installation proposal. For homes lacking any AC Tenants should always be entitled to the use of portable AC equipment overruling any contrary provisions in their tenancy agreements
  • Workers should be entitled to maximum temperature at their workplace. If their employer cannot provide it - they should automatically be entitled to work from home for relevant roles, o where not appropriate - it would be a reportable health and safety breach
  • As a lot more people have to keep their windows open for ventilation - nighttime noise controls must see more officers allocated to deal with nighttime noise, as well as stricter regulations on the noise itself. Far too open it is impossible to open a window just because your neighbour has a barking dog/watches a nighttime tennis match/summertime party/fire alarm battery expiring, and the council either has no officers available until the day after, or they don't consider the nuisance to be breaching the enforcement threshold
  • Similar to Singapore - open containers/reservoirs/puddles of any liquid should no longer be allowed and enforceable as a "noise nuisance" by local councils. Currently unscrupulous neighbours put out buckets of water outside their homes for weeks on end breeding mosquitoes, so everyone around them cannot safely keep their windows open for ventilation, having to suffer from extra heat exposure
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Avatar for -

Public transport was/is horrendous. No air con on most services and the newer buses have a meager amount of air blowing, that makes no difference at all.

Tubes are boiling, claustrophobic and dirty. Dreadful to travel on.

All London transport...

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Public transport was/is horrendous. No air con on most services and the newer buses have a meager amount of air blowing, that makes no difference at all.

Tubes are boiling, claustrophobic and dirty. Dreadful to travel on.

All London transport has to be assessed to help the health of its users in these horrible heatwaves.

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Avatar for -

Although our newer bus fleet is generally great for winter they prove not to be so good in summer. More like mobile ovens on some days. Especially when busy. The problem is no forced air ventilation that you use to get on the original...

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Although our newer bus fleet is generally great for winter they prove not to be so good in summer. More like mobile ovens on some days. Especially when busy. The problem is no forced air ventilation that you use to get on the original routemaster. They should fit air scoops on the side of buses ( e.g. those with a sliding window opener design),this would force air into the bus rather than just pass along the outside. You could probably put them on the pull open window flap design as well. A few holes or gaps in the base of the scoop would allow rain and sleet/ snow to melt awy during winter periods.

 

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Avatar for -

There should be a cross over to the housing survey here.  There is significant pressure to build new houses, including affordable.  This will create 2 areas of pressure:

  1.  the standard of the houses built - surely these need to be sustainable...
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There should be a cross over to the housing survey here.  There is significant pressure to build new houses, including affordable.  This will create 2 areas of pressure:

  1.  the standard of the houses built - surely these need to be sustainable and energy efficient? They also need to be heatwave sympathetic.
  2. we will see some of them built on land currently occupied by green space.  This could end up reducing the impact of tree planting.  I've asked Bromley council how this might impact them but I have been ignored 3 times.
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Avatar for -

Travelling around London there is no doubt that the older tube stock is totally unfit for purpose.  Appreciate it is expensive but until new carriages with a/c can be provided people will continue to struggle during journeys.

The same...

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Travelling around London there is no doubt that the older tube stock is totally unfit for purpose.  Appreciate it is expensive but until new carriages with a/c can be provided people will continue to struggle during journeys.

The same applies to older buses probably more a problem in outer boroughs.  I took a 15 minute journey on the 314 and was dripping!

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Avatar for -

This weather is lovely. Moaning about it is probably part of the culture. Sending out a survey right now is very manipulative, as the weather was very summery indeed. I can just see a lot of money wasted again in useless initiatives...

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This weather is lovely. Moaning about it is probably part of the culture. Sending out a survey right now is very manipulative, as the weather was very summery indeed. I can just see a lot of money wasted again in useless initiatives, created by people who need to tick a box in their performance review.

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Avatar for - Pangolin

You are aware that thousands of elderly people are quite literally dying due to excessive heat complicating their health conditions? 

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You are aware that thousands of elderly people are quite literally dying due to excessive heat complicating their health conditions? 

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Avatar for -

This weather is lovely, but also dangerous for many people. And it will only get hotter. Our buildings are not designed for keeping people cool (or warm in winter), and many regulations prevent people from making the changes that are needed...

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This weather is lovely, but also dangerous for many people. And it will only get hotter. Our buildings are not designed for keeping people cool (or warm in winter), and many regulations prevent people from making the changes that are needed to keep them cooler/warmer. Where I live, we cannot install heat pumps or air con, because of visual effect and the noise. We cannot put shutters outside the windows. The landlord won't insulate the buildings or the flats. 

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Avatar for - Koala

More trees, solar panels on all bus roofs to provide aircon, and bring back some more un-heated lidos with trees for shade

Avatar for - Vaquita

Remove all the advertising screens that are now all over the Underground. I understand they generate income but each one of them also gives off heat, contributing to the unbearable conditions in tunnels, on platforms and on trains.

Avatar for -

I'd be interested to know by how much and whether conditions would be bearable without the screens.  I suspect it is fractions.

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I'd be interested to know by how much and whether conditions would be bearable without the screens.  I suspect it is fractions.

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Avatar for - Monarch butterfly

All Boroughs should be planning a good deal of treeplanting especially in streets, both in the ground and in large pots. The local campaign here (Oakfield Avenue N8) to prevent the felling of a mature plane tree shows the opposition from...

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All Boroughs should be planning a good deal of treeplanting especially in streets, both in the ground and in large pots. The local campaign here (Oakfield Avenue N8) to prevent the felling of a mature plane tree shows the opposition from commercial firms (insurance for example) to sensible greening, and maintenance of greening in our streets. 

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Avatar for -

there are some sensible objections e.g. subsidence but it all depends on which tree you plant.  I'm not an expert but I am sure there are specific trees which do not have deep roots or which can be managed.

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there are some sensible objections e.g. subsidence but it all depends on which tree you plant.  I'm not an expert but I am sure there are specific trees which do not have deep roots or which can be managed.

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Avatar for - Adelie penguin

Fit a/c in all public transport a

Avatar for - Adelie penguin

Bought loose fighting clothes , had a midday cold bath, did gardening pr 10.00 am. Bulk cooked and ate cold meats and salads. 

Drew curtains downstairs left  all upstairs windows open

Doing the above, visitors wanting a barbecue made it worse...

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Bought loose fighting clothes , had a midday cold bath, did gardening pr 10.00 am. Bulk cooked and ate cold meats and salads. 

Drew curtains downstairs left  all upstairs windows open

Doing the above, visitors wanting a barbecue made it worse

Bought a small pool for £50 which will be used under a sunbrella. London needs to talk with air conditioning companies and get a good price on one robust stand alone a.c.unit that is affordable

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Avatar for - Staghorn coral

Important but not mentioned in the survey is to retrofit buses and tube trains and stations with air conditioning (providing it is powered by renewable energy).

Avatar for - Sea turtle

Why don't all TFL vehicles have photovoltaic cells added to them, this would reduce cost and heat 

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Why don't all TFL vehicles have photovoltaic cells added to them, this would reduce cost and heat 

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Avatar for - Orangutan

The peak power output of a standard PV panel is 450W, briefly achievable around noon, decreasing with age, higher ambient temperature and poor quality of manufacture, not to mention dirt build-up (pigeon poop). Effective air-conditioning of...

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The peak power output of a standard PV panel is 450W, briefly achievable around noon, decreasing with age, higher ambient temperature and poor quality of manufacture, not to mention dirt build-up (pigeon poop). Effective air-conditioning of a TFL bus requires more panels than would fit on the bus. These will also be prone to plenty of mechanical damage when the bus rubs against tree branches, but the Greens may believe differently of course. 

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Timeline

STAGE: Evidence gathering

Launch of the London Climate Resilience Review

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London’s changing climate

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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

Happening now
STAGE: You said, we did

Report on impacts of climate change published

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Read our update
STAGE: Evidence gathering

London Heat Risk Delivery Plan programme launches

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STAGE: Evidence gathering

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

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Shaping London's Heat Plan

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Londoners have responded 895 times

Start the survey
STAGE: Programme design

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

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STAGE: Programme launched

Spring 2026: Publication of the London Heat Risk Delivery Plan

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