How heat insights are changing
Back in 2020, opinion data was already indicating that concerns about heat risks had become widespread in the UK, following a sharp rise in heat salience over the last decade.
This pattern has broadly continued, with heat risks routinely reported as the most common direct experience of climate change in our tracker data.
But over the last few years, there’s been a major acceleration in UK heat-related research, insights and resources – with 2026 becoming a major focal point.
There is now much more granular opinion evidence to show how heat is making Britons more fearful for the future, parents scared for their children’s safety, and is disrupting the nation’s health, sleep and work. This comes alongside a sharp uptick in media reporting on heat, more vivid stories of people coping with heat ‘on the ground’ – from schools to maternity wards – and better tracking of the ways media trends are changing.
There is now also greater understanding about the different ways people respond to heat and why; as well as the perceptual and behavioural gaps that complexify people’s responses to heat risks and alerts.
And with similar research questions repeated year on year, we are increasingly able to see how opinion on heat is changing in the UK.
Positivity towards heat is declining, while concerns about preparedness grow
A clear shift is the way that positive associations towards heat have broken down. Back in 2019, an evaluation of England’s heat plan noted that “Most people had positive views of hot weather, and for many it was something they looked forward to as it invoked feelings of good health and well-being.”
The 40C heat of 2022 was a major turning point, with the British Red Cross reporting the following summer that there had been a “significant increase” in the number of people who were concerned about the personal impact of heatwaves (compared against 2021 data) – although more than a third still said they were ‘not concerned’.
Positivity declined further across the record breaking summer of 2025, with more than half (52%) saying they were hoping a heatwave “does not happen” by July. Fast forward to August 2026, and after another relentless chain of heatwaves, only a quarter wanted to see another one happen (25%), with two-thirds now hoping it did not happen (65%).
At the same time, public sentiment that we are ‘not prepared’ has grown.
In late 2022, heat experts, practitioners and frontline workers warned about a lack of preparedness, following the 40C heat. In a 2023 national survey, majorities disagreed that national (68%) and local (67%) governments in the UK were prepared for heat risks. In 2024 data from Climate Barometer, 78% felt the UK was either ‘not very’ or ‘not at all’ prepared for extreme weather events, including heat and drought. A similar survey question asked in 2025 put the figure at 81%. This year, More in Common reported that 4 in 5 (84%) now feel the UK is unprepared to cope with extremely hot weather.
There are also signs that people are increasingly making causal links between heat and climate change.
While past data showed that 76% thought climate change ‘likely’ or ‘definitely’ played a role in the 2019 UK/Europe heatwaves – more recent polling shows that 86% believed climate change was either ‘entirely’ or ‘partially’ responsible for this June’s event. The least likely to make the links were Reform voters, yet even 68% of this group agreed climate played a key role.
But with the connections not being routinely made across heat reporting, and the fossil fuel transition also not readily mentioned, there is still some way to go to close the ‘missing links’ between the problems, causes and responses.
Our latest public opinion data & a new measure of climate opinion
Here’s how public views have shifted over the summer – and introducing a new ‘health check’ of climate opinion.