Tokyo, officially the Tokyo Metropolis, is the capital and most populous city of Japan. The population of the city proper was over 14 million as of 2023. The Greater Tokyo Area, which includes Tokyo and parts of six neighboring prefectures, is the third-most populous metropolitan area in the world, with 33 million residents as of 2025.
Lying at the head of Tokyo Bay, Tokyo is part of the Kantō region, on the central coast of Honshu, Japan's largest island. It is Japan's economic center and the seat of the Japanese government and the Emperor of Japan. The Tokyo Metropolitan Government administers Tokyo's central 23 special wards, which formerly made up Tokyo City; various commuter towns and suburbs in its western area; and two outlying island chains, the Tokyo Islands. Although most of the world recognizes Tokyo as a city, since 1943 its governing structure has been more akin to that of a prefecture, with an accompanying Governor and Assembly taking precedence over the smaller municipal governments that make up the metropolis. Special wards in Tokyo include Chiyoda, the site of the National Diet Building and the Tokyo Imperial Palace; Shinjuku, the city's administrative center; and Shibuya, a hub of commerce and business.
Tokyo, originally known as Edo, rose to political prominence in 1603 when it became the seat of the Tokugawa shogunate, and by the mid-18th century, Edo had evolved from a small fishing village into one of the largest cities in the world, with a population surpassing one million. After the Meiji Restoration (1868), the imperial capital in Kyoto was moved to Edo, and the city was renamed Tokyo (lit. 'Eastern Capital'). Tokyo was greatly damaged by the 1923 Great Kantō earthquake and by allied bombing raids during World War II. Beginning in the late 1940s, Tokyo underwent rapid reconstruction and expansion, which fueled the Japanese economic miracle, in which Japan's economy became the second-largest in the world at the time, behind that of the United States. As of 2025, Tokyo is home to 26 of the world's 500 largest companies, as listed in the annual Fortune Global 500.
Tokyo was the first city in Asia to host the Summer Olympics and Paralympics, in 1964, and also hosted in 2021. It hosted three G7 summits, in 1979, 1986, and 1993. Tokyo is an international hub of research and development and an academic center, with several major universities, including the University of Tokyo, the top-ranking university in Japan. Tokyo Station is the central hub for the Shinkansen, the country's high-speed railway network, and the city's Shinjuku Station is the world's busiest train station. Tokyo Skytree is the world's tallest tower. The Tokyo Metro Ginza Line, which opened in 1927, is the oldest underground metro line in Asia.
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Tokyo's nominal gross domestic output was 120.2 trillion yen (US$887.9 billion) in FY2022 and accounted for 21.2% of Japan's economic output, which converts to 8.43 million yen or US$62,291 per capita. Including the Greater Tokyo Area, Tokyo is the second-largest metropolitan economy in the world after New York, with a 2022 gross metropolitan product estimated at US$2.08 trillion. Although Tokyo's status as a leading global financial hub has diminished with the Lost Decades since the 1990s, when the Tokyo Stock Exchange (TSE) was the world's largest, with a market capitalization about 1.5 times that of the NYSE, Tokyo is still a leading financial hub, and the TSE remains among the world's top five major stock exchanges. Tokyo is categorized as an Alpha+ city by the Globalization and World Cities Research Network. It ranked 14th in the 2024 edition of the Global Livability Ranking, and has been ranked as the safest city in the world by the Economist Intelligence Unit.
Etymology
Tokyo was originally known as Edo (江戸), a kanji compound of 江 (e, 'cove, inlet') and 戸 (to, 'entrance, gate, door'). The name, which can be translated as "estuary", is a reference to the original settlement's location at the meeting of the Sumida River and Tokyo Bay. During the Meiji Restoration in 1868, the name of the city was changed to Tokyo (東京; from 東 tō 'east', and 京 kyō 'capital'), when it became the new imperial capital, in line with the East Asian tradition of including the word for capital (京) in the name of the capital city (for example, Kyoto (京都), Keijō (京城), Beijing (北京), Nanjing (南京), and Xijing (西京)). During the early Meiji period, the city was sometimes called Tōkei, an alternative pronunciation for the same characters representing "Tokyo", making it a kanji homograph. Some surviving official English documents use the spelling "Tokei"; however, this pronunciation is now obsolete.
The site of Tokyo has been inhabited since ancient times, and there have been multiple Paleolithic period (around 40,000–16,000 BC) sites found in present-day Tokyo. During the subsequent Jomon period, the Holocene glacial retreat caused sea levels in Tokyo Bay to rise by 120 cm, with the coastline running along the edge of what is now the Imperial Palace. Middens such as the Omori Shell Mounds still mark where the coastline ran in those days. The Yayoi period, during which agriculture spread across the country, is named after the Yayoi 2-chōme Site in Bunkyo, where the first example of Yayoi pottery was excavated in 1884 by Shozo Arisaka.
In 534, a large-scale conflict was recorded in the region, as a result of which Kasahara no Omi, the victor, was appointed Kuni no Miyatsuko (provincial governor) by Emperor Ankan. Senso-ji in Asakusa was founded in 645. Under the Ritsuryō system established during the Asuka period, most of present-day Tokyo was part of Musashi Province. Following the fall of the Kingdom of Baekje after the Battle of Baekgang in the 660s, thousands of refugees were resettled in Musashi.
During the Heian period, Edo was first fortified by the Edo clan in the late twelfth century, and in 1457, Ōta Dōkan built Edo Castle to defend the region from the Chiba clan. After Dōkan was assassinated in 1486, the Ohgigayatsu branch of the Uesugi clan took control of the castle and the surrounding area. However, the Later Hōjō clan replaced them after the Battle of Takanawahara in 1524, only to be defeated by Toyotomi Hideyoshi during the Siege of Odawara in 1590.
Following the siege of Odawara, Tokugawa Ieyasu was granted the Kantō region and moved there from his ancestral land of Mikawa Province. When he became shōgun, the de facto ruler of the country, in 1603, the whole country came to be ruled by Edo. While the Tokugawa shogunate ruled the country in practice, the Imperial House of Japan based in Kyoto was still the de jure ruler, and the title of shōgun was granted by the Emperor as a formality. During the Edo period, the city enjoyed a prolonged period of peace known as the Pax Tokugawa, and in the presence of such peace, the shogunate adopted a stringent policy of seclusion, which helped to perpetuate the lack of any serious military threat to the city. The absence of war-inflicted devastation allowed Edo to devote the majority of its resources to rebuilding in the wake of consistent fires, earthquakes and other devastating natural disasters, and Edo grew into one of the largest cities in the world with a population reaching one million by the 18th century.
However, this prolonged period of seclusion ended with the arrival of American Commodore Matthew C. Perry in 1853. Commodore Perry forced the opening of the ports of Shimoda and Hakodate, leading to an increase in the demand for new foreign goods and subsequently a severe rise in inflation. Social unrest mounted in the wake of these higher prices and culminated in widespread rebellions and demonstrations, especially in the form of the "smashing" of rice establishments. Meanwhile, supporters of the Emperor leveraged the disruption caused by widespread rebellious demonstrations to further consolidate power, which resulted in the overthrow of the last Tokugawa shōgun, Yoshinobu, in 1867 and the end of the Pax Tokugawa. Despite Edo castle being handed over to the Emperor-supporting forces, some forces loyal to the shogunate kept fighting, ending with the final Battle of Ueno on July 4, 1868.
1868–1941
After being handed over to the Meiji government, Edo was renamed Tokyo (Eastern Capital) on September 3, 1868, and the capital was subsequently moved officially from Kyoto to Tokyo by Emperor Meiji.
The former Edo Castle became the new Imperial Palace, and Government ministries such as the Ministry of Finance were relocated to Tokyo by 1871. The 1870s also saw the establishment of other major institutions and facilities such as Ueno Park (1873), the University of Tokyo (1877) and the Tokyo Stock Exchange (1878), as well as the rise of public transportion such as the first railway line in the country, connecting Shimbashi (Shiodome) and Yokohama (Sakuragicho). The rapid modernization of the country was driven from Tokyo, with its business districts such as Marunouchi filled with modern brick buildings and the railway network serving as a means to help the large influx of labour force needed to keep the development of the economy. The City of Tokyo was officially established on May 1, 1889. The Imperial Diet, the national legislature of the country, was established in Tokyo in 1889, and it has ever since been operating in the city.
On September 1, 1923, the Great Kanto Earthquake struck the city, and the earthquake and subsequent fire killed an estimated 105,000 citizens. The loss amounted to 37 percent of the country's economic output. On the other hand, the destruction provided an opportunity to reconsider the planning of the city, which had changed its shape hastily after the Meiji Restoration. The high survival rate of concrete buildings promoted the transition from timber and brick architecture to modern, earthquake-proof construction. The Tokyo Metro Ginza Line portion between Ueno and Asakusa, the first underground railway line built outside Europe and the American continents, was completed on December 30, 1927.
Although Tokyo recovered robustly from the earthquake and new cultural and liberal political movements, such as Taishō Democracy, spread, the 1930s saw an economic downturn caused by the Great Depression and major political turmoil. Two attempted military coups d'état happened in Tokyo, the May 15 incident in 1932 and the February 26 incident in 1936. This turmoil eventually allowed the military wings of the government to take control of the country, leading to Japan joining the Second World War as an Axis power. Due to the country's political isolation on the international stage caused by its military aggression in China and the increasingly unstable geopolitical situations in Europe, Тоkуо had to give up hosting the 1940 Summer Olympics in 1938. Rationing started in June 1940 as the nation braced itself for another world war, while the 26th Centenary of the Enthronement of Emperor Jimmu celebrations took place on a grand scale to boost morale and increase the sense of national identity in the same year. On December 7, 1941, Japan attacked the American bases at Pearl Harbor in Hawaii, entering the Second World War against the Allied Powers. The wartime regime greatly affected life in the city.
In 1943, Tokyo City merged with Tokyo Prefecture to form the Tokyo Metropolis (東京都, Tōkyō-to), a reorganization aimed to create a more centralized and efficient administrative structure to better manage resources, urban planning, and civil defence during wartime. The Tokyo Metropolitan Government thus became responsible for both prefectural and city functions while administering cities, towns, and villages in the suburban and rural areas.
Although Japan enjoyed significant success in the initial stages of the war and rapid expansion of its sphere of influence, the Doolittle Raid on April 18, 1942 marked the first direct foreign attack on Tokyo. Although the physical damage was minimal, the raid demonstrated the vulnerability of the Japanese mainland to air attacks and boosted American morale.
Large-scale Allied air bombing of cities in the Japanese home islands, including Tokyo, began in late 1944 when the US seized control of the Mariana Islands. From these islands, newly developed long-range B-29 bombers could conduct return journeys. The bombing of Tokyo in 1944 and 1945 is estimated to have killed between 75,000 and 200,000 civilians and left more than half of the city destroyed. The deadliest night of the war came on March 9–10, 1945, the night of the American "Operation Meetinghouse" raid. Nearly 700,000 incendiary bombs were dropped on the east end of the city (Shitamachi, 下町), an area with a high concentration of factories and working-class houses. Two-fifths of the city was completely burned, more than 276,000 buildings were destroyed, 100,000 civilians were killed, and 110,000 more were injured. Numerous Edo and Meiji-era buildings of historical significance were destroyed, including the main building of the Imperial Palace, Sensō-ji, Zōjō-ji, Sengaku-ji and Kabuki-za. Between 1940 and 1945, the population of Tokyo dwindled from 6,700,000 to less than 2,800,000, as soldiers were sent to the front and children were evacuated.
After the war, Tokyo became the base from which the Allied Occupation Forces, under Douglas MacArthur, an American general, administered Japan for six years. The original rebuilding plan of Tokyo was based on a plan modelled after the Metropolitan Green Belt of London, devised in the 1930s but canceled due to the war. However, due to the monetary contraction policy known as the Dodge Line, named after Joseph Dodge, the neoliberal economic advisor to MacArthur, the plan had to be reduced to a minimal one focusing on transport and other infrastructure. In 1947, the 35 pre-war special wards were reorganized into the current 23 wards. Tokyo did not experience fast economic growth until around 1950, when heavy industry output returned to pre-war levels.
Since around the time the Allied occupation of Japan ended in 1952, Tokyo's focus shifted from rebuilding to developing beyond its pre-war stature. From the 1950s onwards, Tokyo's Metro and railway network saw significant expansion, culminating in the launch of the world's first dedicated high-speed railway line, the Shinkansen, between Tokyo and Osaka in 1964. The same year saw the development of other transport infrastructure, such as the Shuto Expressway to meet the increased demand brought about by the 1964 Tokyo Olympics, the first Olympic Games held in Asia. Around this time, the 31-metre height restriction, imposed on all buildings since 1920, was relaxed due to the increased demand for office buildings and advancements in earthquake-proof construction. Starting with the Kasumigaseki Building (147 metres) in 1968, skyscrapers began to dominate Tokyo's skyline. During this period of rapid rebuilding, Tokyo celebrated its 500th anniversary in 1956 and the Ogasawara Islands, which had been under control of the US since the war ended, were returned in 1968. Ryokichi Minobe, a Marxian economist who served as the governor for 12 years starting in 1967, is remembered for his welfare state policy, including free healthcare for the elderly and financial support for households with children, and his 'war against pollution' policy, as well as the large government deficit they caused.
1973–present
Although the 1973 oil crisis put an end to the rapid post-war recovery and development of Japan's economy, its became the world's second-largest economy at the time during that decade, remaining so until 2010 when it was surpassed by China. Tokyo's development was sustained by its status as the economic, political, and cultural hub of such a country. In 1978, after years of the intense Sanrizuka Struggle, Narita International Airport opened as the new gateway to the city, while the relatively small Haneda Airport switched to primarily domestic flights. West Shinjuku, which had been occupied by the vast Yodobashi Water Purification Centre until 1965, became the site of an entirely new business district characterized by skyscrapers surpassing 200 metres during this period.
The American-led Plaza Accord in 1985, which aimed to depreciate the US dollar, had a devastating effect on Japan's manufacturing sector, particularly affecting small to mid-size companies based in Tokyo. This led the government to adopt a domestic-demand-focused economic policy, ultimately causing an asset price bubble. Land redevelopment projects were planned across the city, and real estate prices skyrocketed. By 1990, the estimated value of the Imperial Palace surpassed that of the entire state of California. The Tokyo Stock Exchange became the largest stock exchange in the world by market capitalization, with the Tokyo-based NTT becoming the most highly valued company globally.
After the bubble burst in the early 1990s, Japan experienced a prolonged economic downturn called the "Lost Decades", characterized by extremely low or negative economic growth, deflation, and stagnant asset prices. Tokyo's status as a world city is said to have depreciated greatly during these three decades. Nonetheless, Tokyo still saw new urban developments during this period. Recent projects include Ebisu Garden Place, Tennōzu Isle, Shiodome, Roppongi Hills, Shinagawa, and the Marunouchi side of Tokyo Station. Land reclamation projects in Tokyo have also been going on for centuries. The most prominent is the Odaiba area, now a major shopping and entertainment center. In the 1990s, various plans were proposed for transferring national government functions from Tokyo to secondary capitals in other regions of Japan, to spread population and investment more evenly. Such plans were met with fierce opposition, and then-prime minister Junichiro Koizumi decided to close parliamentary discussions in 2003. The Agency for Cultural Affairs relocated from Kasumigaseki to Kyoto in 2023, making it the only central organ of the Civil Service to move out of Tokyo so far.
On September 7, 2013, the IOC selected Tokyo to host the 2020 Summer Olympics. Thus, Tokyo became the first Asian city to host the Olympic Games twice. However, the 2020 Olympic Games were postponed and held from July 23 to August 8, 2021, as a result of the COVID-19 pandemic.
Administration
Local government
Under Japanese law, the prefecture of Tokyo is designated as a to (都), translated as metropolis. Tokyo Prefecture is the most populous prefecture and the densest, with 6,100 inhabitants per square kilometer (16,000/sq mi); by geographic area it is the third-smallest, above only Osaka and Kagawa. Its administrative structure is similar to that of Japan's other prefectures. The 23 special wards (特別区, tokubetsu-ku), which until 1943 constituted the city of Tokyo, are self-governing municipalities, each having a mayor, a council, and the status of a city.
In addition to these 23 special wards, Tokyo also includes 26 more cities (市 -shi), five towns (町 -chō or machi), and eight villages (村 -son or -mura), each of which has a local government. The Tokyo Metropolitan Government administers the whole metropolis, including the 23 special wards and the cities and towns that constitute the prefecture. It is headed by a publicly elected governor and metropolitan assembly. Its headquarters is in Shinjuku Ward.
The governor of Tokyo is elected every four years. The incumbent governor, Yuriko Koike, was elected in 2016, following the resignation of her predecessor, Yoichi Masuzoe. She was re-elected in 2020 and 2024. The legislature of the Metropolis is called the Metropolitan Assembly, and it has one house with 127 seats. The assembly is responsible for enacting and amending prefectural ordinances, approving the budget (8.5 trillion yen in fiscal 2024), and voting on important administrative appointments made by the governor, including the vice governors. Its members are also elected on a four-year cycle.
Municipalities
Since the completion of the Great Mergers of Heisei in 2001, Tokyo consists of 62 municipalities: 23 special wards, 26 cities, 5 towns and 8 villages. All municipalities in Japan have a directly elected mayor and a directly elected assembly, each elected on independent four-year cycles. The 23 Special Wards cover the area that had been Tokyo City until 1943, 30 other municipalities are located in the Tama area, and the remaining 9 are on Tokyo's outlying islands.
The special wards (特別区, tokubetsu-ku) of Tokyo comprise the area formerly incorporated as Tokyo City. Each special ward has used the word "city" in its official English name in recent times (e.g., Chiyoda City), but its status is more akin to boroughs in London or New York. Certain municipal functions, such as waterworks, sewerage, and fire-fighting, are handled by the Tokyo Metropolitan Government rather than each ward. To pay for the added administrative costs, the Metropolitan Government collects municipal taxes, which would usually be levied by each ward. The "three central wards" of Tokyo – Chiyoda, Chūō, and Minato – are the business core of the city, with a daytime population more than seven times higher than their nighttime population. Chiyoda Ward is occupied by many major Japanese companies and is also the seat of the national government, and the Emperor of Japan, yet is one of the least populated wards.
To the west of the special wards, Tokyo Metropolis consists of cities, towns, and villages that enjoy the same legal status as those elsewhere in Japan. While serving as "bed towns" for those working in central Tokyo, some of them also have a local commercial and industrial base, such as Tachikawa. Collectively, these are often known as the Tama area or Western Tokyo. The far west of the Tama area is occupied by the district (gun) of Nishi-Tama. Much of this area is mountainous and unsuitable for urbanization. The highest mountain in Tokyo, Mount Kumotori, is 2,017 m (6,617 ft) high; other mountains in Tokyo include Takanosu (1,737 m (5,699 ft)), Odake (1,266 m (4,154 ft)), and Mitake (929 m (3,048 ft)). Lake Okutama, on the Tama River near Yamanashi Prefecture, is Tokyo's largest lake and serves as the primary reservoir for Tokyo's water supply. The district is composed of three towns (Hinode, Mizuho and Okutama) and one village (Hinohara). The Tokyo Metropolitan Government has designated Hachiōji, Tachikawa, Machida, Ōme, and Tama New Town as regional centers of the Tama area.
Tokyo has numerous outlying islands, which extend as far as 1,850 km (1,150 mi) from central Tokyo. Because of the islands' distance from the administrative headquarters of the Tokyo Metropolitan Government in Shinjuku, local sub-prefectural branch offices administer them. The Izu Islands are a group of volcanic islands and form part of the Fuji-Hakone-Izu National Park. The islands in order from closest to Tokyo are Izu Ōshima, Toshima, Nii-jima, Shikine-jima, Kōzu-shima, Miyake-jima, Mikurajima, Hachijō-jima, and Aogashima. The Izu Islands are grouped into three subprefectures. Izu Ōshima and Hachijojima are towns. The remaining islands are six villages, with Niijima and Shikinejima forming one village. The Ogasawara Islands include, from north to south, Chichi-jima, Nishinoshima, Haha-jima, Kita Iwo Jima, Iwo Jima, and Minami Iwo Jima. Ogasawara also administers two small outlying islands: Minami Torishima, the easternmost point in Japan and at 1,850 km (1,150 mi) the most distant island from central Tokyo, and Okinotorishima, the southernmost point in Japan. Japan's claim on an exclusive economic zone (EEZ) surrounding Okinotorishima is contested by China and South Korea as they regard Okinotorishima as uninhabitable rocks which have no EEZ. The Iwo chain and the outlying islands have no permanent population, but hosts Japan Self-Defense Forces personnel. Local populations are only found in Chichi-Jima and Haha-Jima. The islands form both Ogasawara Subprefecture and the village of Ogasawara, Tokyo.
Environmental policies
Tokyo has enacted a measure to cut greenhouse gases. Governor Shintaro Ishihara created Japan's first emissions cap system, aiming to reduce greenhouse gas emission by a total of 25% by 2020 from the 2000 level. Tokyo is an example of an urban heat island, and the phenomenon is especially serious in its special wards. According to the Tokyo Metropolitan Government, the annual mean temperature has increased by about 3 °C (5.4 °F) over the past 100 years. Tokyo has been cited as a "convincing example of the relationship between urban growth and climate".
In 2006, Tokyo enacted the "10-Year Project for Green Tokyo" to be realized by 2016. It set a goal of increasing roadside trees in Tokyo to 1 million (from 480,000), and adding 1,000 ha (2,500 acres) of green space, 88 ha (220 acres) of which would be a new park named "Umi no Mori" to replace a landfill. From 2007 to 2010, 436 ha (1,080 acres) of the planned 1,000 ha of green space was created and 220,000 trees were planted, bringing the total to 700,000. As of 2014, roadside trees in Tokyo have increased to 950,000, and a further 300 ha (740 acres) of green space has been added.
In 2023, the Tokyo Metropolitan Government launched the Tokyo Green Biz Project, an initiative seeking to increase and preserve the city's greenery over the next 100 years, create an online map designed to increase collaboration between residents and the local government, and create and promote green infrastructure. They have also increased the footage of parks, and encourage citizens to get involved in pond cleaning, tree planting, and working as park guides.
In 2018 the Kasai Marine Park became the first wetland in Tokyo to be registered under the Ramsar Convention. It opened in 1989.
National government
Tokyo is the seat of all three branches of government: the legislature (National Diet), the executive (Cabinet led by the Prime Minister), and the judiciary (Supreme Court of Japan), as well as the Emperor of Japan, the head of state. Most government ministries are concentrated in the Kasumigaseki district in Chiyoda, and the name Kasumigaseki is often used as a metonym for the Japanese national civil service. Tokyo has 25 constituencies for the House of Representatives, 18 of which were won by the ruling Liberal Democrats and 7 by the main opposition Constitutional Democrats in the 2021 general election. Apart from these seats, through the Tokyo proportional representation block, Tokyo sends 17 more politicians to the House of Representatives, 6 of whom were members of the ruling LDP in the 2021 election. The Tokyo at-large district, which covers the entire metropolis, sends 12 members to the House of Councillors.
Tokyo is the founding member of the Asian Network of Major Cities 21 and is a member of the Council of Local Authorities for International Relations. Tokyo was also a founding member of the C40 Cities Climate Leadership Group.
Geography
The mainland portion of Tokyo lies northwest of Tokyo Bay and measures about 90 km (56 mi) east to west and 25 km (16 mi) north to south. The average elevation in Tokyo is 40 m (131 ft). Chiba Prefecture borders it to the east, Yamanashi to the west, Kanagawa to the south, and Saitama to the north. Mainland Tokyo is further subdivided into the special wards (occupying the eastern half) and the Tama area (多摩地域) stretching westwards. Tokyo has a latitude of 35.65 (near the 36th parallel north), which makes it more southern than Rome (41.90), New York City (40.71) and Beijing (39.91).
Within the administrative boundaries of Tokyo Metropolis are two island chains in the Pacific Ocean directly south: the Izu Islands, and the Ogasawara Islands, which stretch more than 1,000 km (620 mi) away from the mainland. Because of these islands and the mountainous regions to the west, Tokyo's overall population density figures far under-represent the real figures for the urban and suburban regions of Tokyo.
Climate
The former city of Tokyo and the majority of Tokyo prefecture lie in the humid subtropical climate zone (Köppen climate classification: Cfa), with hot, humid summers and cool winters with occasional cold spells. The region, like much of Japan, experiences a one-month seasonal lag. The warmest month is August, which averages 26.9 °C (80.4 °F). The coolest month is January, averaging 5.4 °C (41.7 °F). The record low temperature was −9.2 °C (15.4 °F) on January 13, 1876. The record high was 39.5 °C (103.1 °F) on July 20, 2004.
The record highest low temperature is 30.4 °C (86.7 °F), on August 11, 2013.
Annual rainfall averages nearly 1,600 millimeters (63.0 in), with a wetter summer and a drier winter. The growing season in Tokyo lasts for about 322 days from around mid-February to early January. Snowfall is sporadic and occurs almost annually. Tokyo often sees typhoons every year, though few are strong. The wettest month since records began in 1876 was October 2004, with 780 millimeters (30 in) of rain, including 270.5 mm (10.65 in) on the ninth of that month. The most recent of four months on record to observe no precipitation is December 1995. Annual precipitation has ranged from 879.5 mm (34.63 in) in 1984 to 2,229.6 mm (87.78 in) in 1938.
Offshore territories
The climates of Tokyo's offshore territories vary significantly from those of the city. The climate of Chichijima in Ogasawara village is on the boundary between the tropical savanna climate (Köppen classification: Aw) and the tropical rainforest climate (Köppen classification: Af). It is approximately 1,000 km (621 mi) south of the Greater Tokyo Area, resulting in much different climatic conditions. Tokyo's easternmost territory, the island of Minamitorishima in Ogasawara village, is in the tropical savanna climate zone (Köppen classification: Aw). Tokyo's Izu and Ogasawara islands are affected by an average of 5.4 typhoons a year, compared to 3.1 in mainland Kantō.
Historical temperature graph
Temperature in degrees CelciusMonth-100102030401875-061908-121942-061975-122009-06Highest tempAverage high tempAverage low tempLowest tempTemperature in Tokyo, Japan.mw-chart-8b43a16f1007c49f784a1e60c1cf5c3ad54de77f6bd6297d353694eefcbef5a154a7c6b9c2f18daec27ed82a317365b4af2131cd4e6782c3154dab8360b22088__zr1192069-cls-6198775:hover{pointer-events:none}.mw-chart-8b43a16f1007c49f784a1e60c1cf5c3ad54de77f6bd6297d353694eefcbef5a154a7c6b9c2f18daec27ed82a317365b4af2131cd4e6782c3154dab8360b22088__zr1192069-cls-6198776:hover{cursor:pointer;fill:rgba(0,0,0,1)}.mw-chart-8b43a16f1007c49f784a1e60c1cf5c3ad54de77f6bd6297d353694eefcbef5a154a7c6b9c2f18daec27ed82a317365b4af2131cd4e6782c3154dab8360b22088__zr1192069-cls-6198777:hover{cursor:pointer}.mw-chart-8b43a16f1007c49f784a1e60c1cf5c3ad54de77f6bd6297d353694eefcbef5a154a7c6b9c2f18daec27ed82a317365b4af2131cd4e6782c3154dab8360b22088__zr1192069-cls-6198778:hover{cursor:pointer;fill:rgba(82,130,235,1)}.mw-chart-8b43a16f1007c49f784a1e60c1cf5c3ad54de77f6bd6297d353694eefcbef5a154a7c6b9c2f18daec27ed82a317365b4af2131cd4e6782c3154dab8360b22088__zr1192069-cls-6198779:hover{cursor:pointer;fill:rgba(255,199,56,1)}.mw-chart-8b43a16f1007c49f784a1e60c1cf5c3ad54de77f6bd6297d353694eefcbef5a154a7c6b9c2f18daec27ed82a317365b4af2131cd4e6782c3154dab8360b22088__zr1192069-cls-6198780:hover{cursor:pointer;fill:rgba(255,132,111,1)}.mw-chart-8b43a16f1007c49f784a1e60c1cf5c3ad54de77f6bd6297d353694eefcbef5a154a7c6b9c2f18daec27ed82a317365b4af2131cd4e6782c3154dab8360b22088__zr1192069-cls-6198781:hover{cursor:pointer;fill:rgba(140,225,196,1)}.mw-chart-8b43a16f1007c49f784a1e60c1cf5c3ad54de77f6bd6297d353694eefcbef5a154a7c6b9c2f18daec27ed82a317365b4af2131cd4e6782c3154dab8360b22088__zr1192069-cls-6198782:hover{cursor:pointer;fill:rgba(0,0,0,0)}
