
In 2022, several areas of the world experienced
heat wave
A heat wave or heatwave, sometimes described as extreme heat, is a period of abnormally hot weather generally considered to be at least ''five consecutive days''. A heat wave is usually measured relative to the usual climate in the area and ...
s. Heat waves were especially notable in East Asia, the Indian subcontinent, Australia, western Europe, the United States, and southern South America. 2022 heat waves accounted for record-breaking temperatures and, in some regions,
heat-related deaths. Heat waves were worsened by the
effects of climate change
Effects of climate change are well documented and growing for Earth's natural environment and human societies. Changes to the climate system include an Instrumental temperature record, overall warming trend, Effects of climate change on the ...
, and they exacerbated
droughts
A drought is a period of drier-than-normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, ...
and
wildfires
A wildfire, forest fire, or a bushfire is an unplanned and uncontrolled fire in an area of Combustibility and flammability, combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identified as a ...
.
Background and effects
Due to
climate change
Present-day climate change includes both global warming—the ongoing increase in Global surface temperature, global average temperature—and its wider effects on Earth's climate system. Climate variability and change, Climate change in ...
, heat waves and other
extreme weather events are longer and more intense.
In many places, heat waves were accompanied by
droughts
A drought is a period of drier-than-normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, ...
and
wildfires
A wildfire, forest fire, or a bushfire is an unplanned and uncontrolled fire in an area of Combustibility and flammability, combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identified as a ...
.
Heat waves and droughts affected water supplies, rivers (along with shipping and
nuclear reactor cooling), ecosystems, various
global supply chains, health, and agriculture worldwide.
By region
Africa
Tunisia
On 13 July in
Tunis
Tunis (, ') is the capital city, capital and largest city of Tunisia. The greater metropolitan area of Tunis, often referred to as "Grand Tunis", has about 2,700,000 inhabitants. , it is the third-largest city in the Maghreb region (after Casabl ...
, the capital city of Tunisia, the temperature reached , worsening
wildfires in the country.
Australia
In 14 January in
Onslow, Western Australia
Onslow is a coastal town in the Pilbara region of Western Australia, north of Perth. It had a population of 829 people as at 2021 and is located within the Shire of Ashburton local government area.
The town is served by Onslow Airport, and i ...
, the temperature hit . If verified, the temperature would be tied as the highest in the Southern Hemisphere. From 18 to 23 January,
Perth
Perth () is the list of Australian capital cities, capital city of Western Australia. It is the list of cities in Australia by population, fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth . The ...
experienced six consecutive days with temperatures exceeding . Perth had eleven days of temperatures over during the 2021–2022 summer, topping the previous record of seven days recorded in 2016–2017. In early March, a strong heat wave affected Northern Australia, and in particular
North Queensland
North Queensland or the Northern Region is the northern part of the Australian state of Queensland that lies just south of Far North Queensland. Queensland is a massive state, larger than many countries, and its Tropical North Queensland, trop ...
, with
Townsville
The City of Townsville is a city on the north-eastern coast of Queensland, Australia. With a population of 201,313 as of 2024, it is the largest settlement in North Queensland and Northern Australia (specifically, the parts of Australia north of ...
equalling or beating its previous March minimum temperature record five times in one week.
Asia
China
During 2022, China suffered several heat waves, starting 5 July. According to the
China Meteorological Administration
The China Meteorological Administration (CMA) is the national weather service of the People's Republic of China. The institution is located in Beijing.
History
The agency was originally established in December 1949 as the Central Military Comm ...
,
Turpan
Turpan () or Turfan ( zh, s=吐鲁番) is a prefecture-level city located in the east of the Autonomous regions of China, autonomous region of Xinjiang, China. It has an area of and a population of 693,988 (2020). The historical center of the ...
was expected to reach between 25 and 31 July. China experienced large
blackouts and experimented with
cloud seeding
Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation, mitigate hail, or disperse fog. The usual objective is to increase rain or snow, either for its own sake or to prevent precipitation from ...
among other measures, despite experts stating it would be "marginally effective" and possibly exacerbate problems.
India and Pakistan
Starting in late March, India and Pakistan began experiencing one of the hottest periods on record. At least 90 people were killed by the heat wave; 25 in India and 65 in Pakistan.
Japan
On 29 June 2022, Japan saw its worst heat wave in 150 years.
Europe
Heat waves affecting Europe began in June.
Spain
The Spanish heat wave began on 12 June. Spain restricted
air conditioning
Air conditioning, often abbreviated as A/C (US) or air con (UK), is the process of removing heat from an enclosed space to achieve a more comfortable interior temperature, and in some cases, also controlling the humidity of internal air. Air c ...
to defined temperature ranges.
United Kingdom
In a heat wave beginning on 8 July, the United Kingdom saw its first ever red extreme heat warning, with a national emergency declared on 15 July. An unconfirmed report from the
Met Office
The Met Office, until November 2000 officially the Meteorological Office, is the United Kingdom's national weather and climate service. It is an executive agency and trading fund of the Department for Science, Innovation and Technology and ...
on 19 July indicated a new record temperature for the United Kingdom, . This is the first time the temperature exceeded in the United Kingdom.
North America
United States
From 8 to 11 February, multiple cities in central and southern
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
experienced a record-breaking heat wave.
San Francisco
San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
recorded on 10 February, an all-time record for the city for meteorological winter.
Palm Springs
Palm Springs (Cahuilla language, Cahuilla: ''Séc-he'') is a desert resort city in Riverside County, California, United States, within the Colorado Desert's Coachella Valley. The city covers approximately , making it the largest city in Rivers ...
recorded on 11 February.
A historic heat wave affected the
Midwest
The Midwestern United States (also referred to as the Midwest, the Heartland or the American Midwest) is one of the four census regions defined by the United States Census Bureau. It occupies the northern central part of the United States. It ...
and
Southeast
The points of the compass are a set of horizontal, Radius, radially arrayed compass directions (or Azimuth#In navigation, azimuths) used in navigation and cartography. A ''compass rose'' is primarily composed of four cardinal directions—north, ...
in the second week of June. On 13 June, more than 125 million people under excessive heat warnings. Following a brief respite 18 June, the heat wave returned into the following days.
An intense, fatal heat wave swept through the United States in July. More than 100 million people were under heat alert, and over 85% of the country had temperatures at or above . This extreme heat severely intensified drought conditions. The heat wave was responsible for at least 19 deaths, including 12 in
Maricopa County, Arizona
Maricopa County () is a County (United States), county in the south-central part of the U.S. state of Arizona. As of the 2020 United States census, 2020 census the population was 4,420,568, or about 62% of the state's total, making it the List ...
.
Another heat wave moved across the United States in early August, with 80 million Americans under heat alerts.
The
US Bureau of Reclamation said in June that those in the
Colorado River Basin would have to create plans to reduce water usage. By the August 15 deadline, the mandate was not being followed and the federal government did not have plans to follow up. Also in August, the US federal government announced that
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
,
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
, and Mexico would have to reduce water usage, per a previously negotiated agreement. These cuts were much less than those prescribed by the Bureau of Reclamation.
A record-breaking heat wave broke numerous records across the Eastern United States from November 5-7. Several places set monthly high temperature records on November 7, including
Bridgeport, Connecticut
Bridgeport is the List of municipalities in Connecticut, most populous city in the U.S. state of Connecticut and the List of cities in New England by population, fifth-most populous city in New England, with a population of 148,654 in 2020. Loc ...
and
Washington DC
Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and Federal district of the United States, federal district of the United States. The city is on the Potomac River, across from ...
.
South America
Southern Cone
From 10 to 16 January, the
Southern Cone
The Southern Cone (, ) is a geographical and cultural subregion composed of the southernmost areas of South America, mostly south of the Tropic of Capricorn. Traditionally, it covers Argentina, Chile, and Uruguay, bounded on the west by the Pac ...
had a severe heat wave. Argentina, Uruguay, Paraguay, and certain parts of Brazil experienced extreme temperatures, with Argentina suffering the worst impacts.
According to the
World Meteorological Organization
The World Meteorological Organization (WMO) is a List of specialized agencies of the United Nations, specialized agency of the United Nations responsible for promoting international cooperation on atmospheric science, climatology, hydrology an ...
, it affected water, energy supply, and agriculture.
Buenos Aires
Buenos Aires, controlled by the government of the Autonomous City of Buenos Aires, is the Capital city, capital and largest city of Argentina. It is located on the southwest of the Río de la Plata. Buenos Aires is classified as an Alpha− glob ...
reached and more than 700,000 people lost power. Parts of Argentina reached .
See also
*
Weather of 2022
*
2021 heat waves
This page documents notable heat waves worldwide in 2021.
In June 2021, a heat wave set a record high nationwide temperature in Canada. The event led to thousands of heat-related deaths.
List February
Across Europe and parts of Asia, unusually ...
References
{{DEFAULTSORT:Heat waves, 2022
2022-related lists
Weather-related lists