大金工业发布第二届《世界空气调查2026》:12城居民对高温感知与制冷使用习惯的品牌调查

Daikin Global | Press Releases | Daikin World Air Survey 2026 Living in a Hotter World: How People Are Adapting to Heat
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2026
Daikin World Air Survey 2026 Living in a Hotter World: How People Are Adapting to Heat
7 August 2026
Others
Daikin World Air Survey 2026
Living in a Hotter World: How People Are Adapting to Heat
Survey of 1,200 people across 12 cities worldwide finds that nearly 90% feel their area has become hotter, with growing impacts on daily life, health, and cooling needs.
Osaka, Japan, August 7, 2026
-
Daikin Industries,
Ltd., a global leader in HVAC&R (Heating, Ventilation, Air Conditioning and Refrigeration) solutions,
reports the results of its second Daikin World Air Survey. The survey gathered responses from 1,200 air
conditioner owners across 12 cities worldwide, exploring perceptions of heat, changes in daily behaviors due
to heat, and air conditioning usage.
Record-breaking temperatures
and heatwaves have become increasingly common around the world in recent years. According to
the
National Oceanic and Atmospheric Administration (NOAA), 2024 was the warmest year
on record globally, while 2023 and 2025 ranked second and third, respectively.*
1
As rising
temperatures increasingly affect daily life, health and cooling needs, the survey explores how people are
adapting to a hotter world.
*1
NOAA National Centers for Environmental Information (NCEI),
Assessing the Global Temperature and Precipitation Analysis in 2025
the Global
Temperature and Precipitation Analysis in 2025
https://www.ncei.noaa.gov/news/global-climate-202513
What This Survey Finds
Areas feel hotter: 86.5% of respondents say their area has
become hotter compared to five years ago
.
Heat is changing daily routines: 59.1% say they have avoided going out or doing outdoor activities because
of the heat.
Health and well-being are affected: 89.9% of respondents report some form
of heat-related physical discomfort.
Cooling seasons are getting longer: 84.1% of respondents say the period
during which they use air conditioning has become longer
Many people face barriers to cooling: 64.4% of respondents
say there are times when they cannot use air conditioning as much as they would like to
because of costs, power supply, or other constraints
86.5% feel their area has become hotter
How do people around the world perceive recent changes in heat?
Across the 12 cities surveyed, 86.5% of respondents reported that their area had become hotter over the past
five years. By city, the highest share was recorded in Bangkok, Thailand, where 97.0% of respondents said
conditions had become hotter, followed by, Delhi, India, and Tokyo, Japan
,
both at
94.0%. Madrid, Spain, and Paris, France, were also above the overall average, with around 90% of respondents
reporting that their area had become hotter.
Notably, the survey was conducted in May 2026, before the major
heatwaves that affected Europe in June and July
, indicating that the perception of rising heat was already widespread at the time of
the survey
How have temperatures actually changed in each city?
Data from the Japan Meteorological Agency show that
Bangkok and Delhi, where many respondents perceived their area to be hotter than five years ago, are
among the warmest of the 12 cities surveyed. While maximum temperatures in Bangkok have continued to
trend upward in recent years, Delhi has experienced a slight decline.
These findings suggest that perceptions of rising heat
are not necessarily driven by maximum temperatures alone. Because temperatures fluctuate considerably
across seasons and years, people may also be influenced by other indicators of heat, including the
frequency and intensity of heatwaves, the number of extremely hot days, and the occurrence of tropical
nights.
Dubai, UAE, recorded the highest average maximum
temperature among the 12 cities, exceeding
40.0
º
C/104.0
℉
. By contrast, Paris, France, had
an average maximum temperature around
26.0
C/78.8
, lower than many of the other
cities surveyed, despite experiencing severe heatwaves this year. This highlights the fact that Paris
has historically had a more moderate summer climate than many of the hotter regions included in the
survey.
Living with Heat in Europe
Hotter summers reshaping perceptions of cooling.
According to the Copernicus Climate Change Service (C3S), Europe is the fastest-warming continent
globally and June 2026 was the hottest June on record in western Europe
*2
. As extreme heat
becomes more frequent, attention is increasingly turning to how homes, buildings and cities can adapt to a
warmer climate.
Although the survey was conducted between 29 May and 5 June 2026, respondents in Paris and Madrid
were already reporting growing exposure to increased heat and longer cooling seasons before the major
heatwaves that affected their region later that summer. Public concern about heat-related health risks,
cooling needs and climate adaptation may have increased further following these extreme weather events.
In Madrid, 93% of respondents said their area had become hotter than it was five years ago, while
89% of respondents in Paris, France, shared the same view. In addition, 87% of respondents in Madrid and 75%
in Paris reported that their cooling season had become longer. These findings suggest that cooling is
becoming an increasingly important aspect of adapting to life in a warmer climate, even in regions that have
traditionally experienced more moderate summer temperatures.
Copernicus Climate Change Service (C3S),
European State of the Climate
2025
https://climate.copernicus.eu/esotc/2025
Copernicus Climate Bulletin,
June 2026 Highlights
https://climate.copernicus.eu/climate-bulletin
Heat is changing how people live and spend their time
Heat is also influencing daily routines. When asked, “Over the past year, have you or any of the
family members you live with changed your lifestyle or behaviors due to the heat?”, the most common response
across the 12 cities surveyed was, “I have avoided going out during the day or taking part in outdoor
activities,” cited by 59.1% of respondents. The highest shares were recorded in Istanbul, Turkey (74%),
Bangkok, Thailand (73%), and Delhi, India (70%).
The second most common response was, “I have increased the amount of time I spend at home or
indoors,” selected by 40.7% of respondents. Other common adaptations, included changing clothing choices,
showering more frequently, using air-conditioned public facilities, and shifting activities to cooler times of the
day. Together, these findings suggest that heat is increasingly influencing everyday routines and behaviors,
extending its impact beyond physical discomfort alone.
89.9% have experienced heat-related physical discomfort
Heat appears to affect not only how people perceive changes in their local climate, but also their health
and daily lives. When asked, "Have you ever experienced physical discomfort that you think was caused by heat?",
89.9% of respondents across the 12 cities surveyed said they had experienced some form of heat-related physical
discomfort.
The most commonly reported effect was a decline in sleep quality (58.3%), followed by fatigue or
sluggishness (50.9%) and headaches (36.1%). While these symptoms may not be as severe as heatstroke, poor sleep can
affect rest and recovery, contributing to fatigue, daytime drowsiness, reduced concentration and lower productivity.
As periods of extreme heat become more frequent, the findings highlight the importance of protecting
people from heat exposure throughout the day and night. Measures that help maintain comfortable indoor environments
may play an increasingly important role in supporting health, well-being and daily activities in a warming climate.
Cooling and Health
Protecting well-being in a hotter world
Extreme heat affects more than comfort. It can influence sleep quality, daily activities and
overall well-being, while also increasing serious health risks. According to the World Health Organization
(WHO), studies estimate that approximately 489,000 heat-related deaths occur worldwide each year. Heat can
trigger heat exhaustion and heatstroke, and increase a range of health risks, including cardiovascular and
respiratory diseases.
*3
In Daikin’s survey, 89.9% of respondents across 12 cities reported
experiencing some form of heat-related physical discomfort. As the world becomes hotter, the effects of
heat are increasingly being felt not only through changing weather patterns, but also in people’s
health, well-being and everyday lives. Ensuring access to energy-efficient and affordable cooling will
increasingly become both a public health and societal challenge.
*3WHO,
Heat and Health
https://www.who.int/news-room/fact-sheets/detail/climate-change-heat-and-health
Cooling seasons are getting longer
As behavior changes in response to heat, the way people use air conditioning is also changing. When
asked, “Compared with five years ago, how has the period during which you use air conditioning for
cooling, from the start to the end of use within a year, changed?”, 84.1% of respondents across 12 cities
said it has become longer. By city, the highest shares were in Delhi, Bangkok, and São Paulo, Brazil.
When respondents were asked how many hours they use air conditioning for cooling when spending a full
day at home during the hottest time of year, the longest average usage time was in Tokyo, at 14 hours and 12
minutes. This was followed by Houston, United States, at 14 hours and 2 minutes, Dubai at 12 hours and 56
minutes, Shanghai, China, at 11 hours and 56 minutes, and New York, United States, at 11 hours and 36 minutes.
Different Homes, Different Cooling
How air conditioning systems vary around the world
Air conditioning has evolved differently around the world to suit lifestyles and housing styles.
In the United States, central air conditioning is the most common residential system. A network
of ducts distributes cool or warm air throughout the home, making it well suited to larger detached houses.
In contrast, many homes in Asia and Europe use ductless mini-split systems, which allow people to
cool or heat individual rooms as needed.
In Europe, the heating market is gradually shifting from traditional boilers to heat pumps.
Modern air conditioning systems are reversible, providing both cooling in summer and heating in winter. As a
result, technologies that were once used primarily for cooling are increasingly playing a role in year-round
indoor comfort.
64.4% cannot always use air conditioning as much as they would like
The survey found that air-conditioning use is increasing around the world, but not everyone is able
to use cooling as much as they need or would like. When asked, “Do you think everyone who wants to use air
conditioning in your country or region is actually able to do so?”, more than 60% of respondents across 12
cities answered “Yes.” At the same time, in São Paulo, Paris, Lagos, Tokyo, and Madrid, more
than half answered “No,” indicating that many people do not believe everyone who wants to use air
conditioning is actually able to do so.
Looking at the respondents themselves, all of whom owned an air conditioner at home, the survey
asked, “If it were not for high electricity costs or power supply constraints, would you want to increase
your use of air conditioning for comfort or health reasons?” Across the 12 cities, 89.7% of respondents
said they would, either “Very much” or “Somewhat.”
Affordable Cooling
Closing the gap in access to cooling
As temperatures rise around the world, access to cooling is becoming increasingly important. The
International Energy Agency (IEA) points out that only about 15% of people living in hot climates own an air
conditioner, and affordability remains a major challenge in many parts of the world.
*4
This challenge is also reflected in Daikin’s survey. Across 12 cities, 64.4% of respondents
said they sometimes cannot use air conditioning as much as they would like because of factors such as
electricity costs or power supply constraints. Addressing access to cooling is not only an energy challenge, but
also a public health and climate resilience challenge, particularly for those most vulnerable to increasing heat
risks.
As cooling demand continues to grow, expanding access to efficient and affordable cooling, together
with reliable power infrastructure and energy-saving practices, will become increasingly important. The
challenge is no longer whether cooling is needed, but how to provide cooling that is affordable,
energy-efficient and sustainable.
*4 International Energy Agency (IEA), Staying Cool Without Overheating the Energy System (2025)
https://www.iea.org/commentaries/staying-cool-without-overheating-the-energy-system
About the Daikin World Air Survey
Daikin has conducted the Modern People’s Air Survey in Japan to reveal how people today think
about air and what issues they face, and to encourage broader interest in air, a subject that is often taken for
granted. Since the survey began in 2002, Daikin has conducted 28 surveys and shared a wide range of topics
related to air.
As Daikin’s overseas business ratio now exceeds 80%, the company expanded the survey globally
in 2024 and conducted the first Daikin World Air Survey to encourage more people across borders to pay attention
to air and to air conditioners, which help create comfortable indoor air environments.
The second Daikin World Air Survey was conducted amid growing global interest in heat. It surveyed
people living in 12 cities across 11 countries about their perceptions of recent heat, changes in daily life and
behavior caused by heat, actual use of air conditioning, impacts on sleep and health, energy-saving awareness,
and challenges related to using cooling. As the world becomes hotter, air conditioning is becoming increasingly
important not only as a home appliance that creates a comfortable indoor environment, but also as something that
supports daily life and health. Through this survey, Daikin aims to shed light on how air environments,
air-conditioning usage, and approaches to heat differ by country and region, and to provide an opportunity to
think about air environments that help people around the world live comfortably and healthily.
Modern People’s Air Survey website:
https://www.daikin.co.jp/air/life/survey
About Daikin
Founded in 1924 in Osaka, Japan, Daikin Industries, Ltd. is a global leader in HVAC&R (heating,
ventilation, air conditioning, and refrigeration) solutions. With more than 130 production sites worldwide and
operations in over 170 countries and regions, Daikin provides a broad portfolio of HVAC&R systems, controls, and
integrated solutions for residential, commercial, and industrial applications. As global demand for energy-efficient
cooling and heating continues to increase, Daikin remains committed to reducing environmental impact while
delivering safe, reliable, comfortable, and healthy air environments. The company continues to advance
high-efficiency technologies and deepen collaboration with partners and communities to create greater environmental
and social value. Guided by its aspiration of “Perfecting the Air,” Daikin offers products, services,
and solutions that meet the diverse needs and expectations of customers around the world. For more information,
visit
www.daikin.com.
https://www.daikin.com/air/daikin_techknowledge/air_survey
Selection of Survey Cities
The way air conditioners are used varies greatly depending on the climate, housing style, etc. of the
area, including the average air temperature and the highest and lowest air temperatures throughout the year. In this
survey, we selected the cities to be surveyed by taking into consideration the climate and geographical balance.
Survey Outline
Main body conducting the survey
Daikin Industries, Ltd.
Survey method
Internet-based questionnaire
Survey respondents
100 people in their 20s to 60s in each city who have air conditioners at home
Subject cities and survey period
Houston, United States / May 29 to June 5, 2026
New York, United States / May 29 to June 5, 2026
Paris, France / May 29 to June 5, 2026
Madrid, Spain / May 29 to June 5, 2026
Istanbul, Turkey / May 29 to June 5, 2026
Lagos, Nigeria / May 29 to June 5, 2026
São Paulo, Brazil / May 29 to June 5, 2026
Dubai, United Arab Emirates / May 29 to June 5, 2026
Delhi, India / May 29 to June 5, 2026
Bangkok, Thailand / May 29 to June 5, 2026
Shanghai, China / May 29 to June 5, 2026
Tokyo, Japan / May 29 to June 3, 2026
Visit the Contacts page for inquiries concerning the information described above.
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