Kamiamakusa (上天草市, Kamiamakusa-shi) is a city located in Kumamoto Prefecture, Japan. As of 31 July 2024, the city had an estimated population of 23,824 in 11085 households, and a population density of 190 persons per km2.[1] The total area of the city is 126.67 km2 (48.91 sq mi).

Kamiamakusa
上天草市
Kamiamakusa City hall
Kamiamakusa City hall
Flag of Kamiamakusa
Official seal of Kamiamakusa
Map
Location of Kami-Amakusa in Kumamoto Prefecture
Location of Kamiamakusa
Kamiamakusa is located in Japan
Kamiamakusa
Kamiamakusa
Location in Japan
Coordinates: 32°35′15″N 130°25′50″E / 32.58750°N 130.43056°E / 32.58750; 130.43056
CountryJapan
RegionKyushu
PrefectureKumamoto
Area
 • Total
126.67 km2 (48.91 sq mi)
Population
 (July 31, 2024)
 • Total
23,824
 • Density190/km2 (490/sq mi)
Time zoneUTC+09:00 (JST)
City hall address1514 Oyano-cho Kami, Kamiamakusa-shi, Kumamoto-ken 869-3692
ClimateCfa
WebsiteOfficial website
Symbols
BirdWarbling white-eye
FlowerSakura
TreePine
Amakusa Matsushima

Geography

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Kamiamakusa covers the western coast of one of the two main islands, Kamishima (上島, "Upper Island") and ten smaller inhabited islands (including Ōyano-jima) and numerous uninhabited islets located the central-west Kumamoto Prefecture, in between the Yatsushiro Sea and the East China Sea. Parts of the city are within the borders of the Unzen-Amakusa National Park.

Neighboring municipalities

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Kumamoto Prefecture

Climate

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Kamiamakusa has a humid subtropical climate (Köppen climate classification Cfa) with hot, humid summers and cool winters. There is significant precipitation throughout the year, especially during June and July. The average annual temperature in Kamiamakusa is 16.8 °C (62.2 °F). The average annual rainfall is 2,019.9 mm (79.52 in) with June as the wettest month. The temperatures are highest on average in August, at around 27.5 °C (81.5 °F), and lowest in January, at around 6.5 °C (43.7 °F).[2] The highest temperature ever recorded in Kamiamakusa was 37.2 °C (99.0 °F) on 13 August 2018; the coldest temperature ever recorded was −6.5 °C (20.3 °F) on 25 January 2016.[3]

Climate data for Matsushima, Kamiamakusa (1991−2020 normals, extremes 1977−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 21.3
(70.3)
24.0
(75.2)
26.2
(79.2)
29.0
(84.2)
31.5
(88.7)
34.6
(94.3)
37.0
(98.6)
37.2
(99.0)
36.4
(97.5)
31.7
(89.1)
27.3
(81.1)
25.6
(78.1)
37.2
(99.0)
Mean daily maximum °C (°F) 10.5
(50.9)
11.9
(53.4)
15.4
(59.7)
20.4
(68.7)
24.7
(76.5)
27.1
(80.8)
31.0
(87.8)
32.4
(90.3)
29.1
(84.4)
24.1
(75.4)
18.3
(64.9)
12.8
(55.0)
21.5
(70.6)
Daily mean °C (°F) 6.5
(43.7)
7.4
(45.3)
10.6
(51.1)
15.1
(59.2)
19.3
(66.7)
22.7
(72.9)
26.6
(79.9)
27.5
(81.5)
24.4
(75.9)
19.3
(66.7)
13.7
(56.7)
8.6
(47.5)
16.8
(62.3)
Mean daily minimum °C (°F) 2.3
(36.1)
2.9
(37.2)
5.8
(42.4)
10.1
(50.2)
14.6
(58.3)
19.2
(66.6)
23.2
(73.8)
23.8
(74.8)
20.7
(69.3)
15.1
(59.2)
9.5
(49.1)
4.4
(39.9)
12.6
(54.7)
Record low °C (°F) −6.5
(20.3)
−5.6
(21.9)
−2.9
(26.8)
−0.4
(31.3)
5.5
(41.9)
10.9
(51.6)
16.3
(61.3)
17.5
(63.5)
9.2
(48.6)
4.6
(40.3)
−0.6
(30.9)
−3.9
(25.0)
−6.5
(20.3)
Average precipitation mm (inches) 70.6
(2.78)
90.9
(3.58)
122.8
(4.83)
145.4
(5.72)
158.7
(6.25)
416.7
(16.41)
352.7
(13.89)
199.4
(7.85)
177.8
(7.00)
106.2
(4.18)
95.6
(3.76)
74.1
(2.92)
2,019.9
(79.52)
Average precipitation days (≥ 1.0 mm) 8.4 8.9 11.1 10.0 9.4 14.9 12.4 10.5 9.7 6.9 8.4 8.2 118.8
Mean monthly sunshine hours 129.1 139.4 169.3 185.0 193.1 127.2 191.9 222.5 183.2 188.8 151.1 137.3 2,018
Source: Japan Meteorological Agency[3][2]

Demographics

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Per Japanese census data, the population of Kamiamakusa in 2020 is 24,563 people.[4] Kamiamakusa has been conducting censuses since 1920.

Historical population
YearPop.±%
1920 39,984—    
1925 39,622−0.9%
1930 41,036+3.6%
1935 42,157+2.7%
1940 41,103−2.5%
1945 54,951+33.7%
1950 55,050+0.2%
1955 53,921−2.1%
1960 51,439−4.6%
1965 47,914−6.9%
1970 42,136−12.1%
YearPop.±%
1975 41,541−1.4%
1980 40,682−2.1%
1985 39,900−1.9%
1990 38,316−4.0%
1995 36,667−4.3%
2000 35,314−3.7%
2005 32,502−8.0%
2010 29,901−8.0%
2015 27,006−9.7%
2020 24,563−9.0%
Kami-Amakusa population statistics[4]

History

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The area of Kamiamakusa was part of ancient Higo Province, During the Edo Period it was tenryō territory under direct control of the Tokugawa shogunate and administered from the office of the Nagasaki bugyō.

The city of Kamiamakusa was established on March 31, 2004, from the merger of the towns of Himedo, Matsushima, Ōyano and Ryūgatake (all from Amakusa District).

Government

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Kamiamakusa has a mayor-council form of government with a directly elected mayor and a unicameral city council of 16 members. Kamiamakusa contributes one member to the Kumamoto Prefectural Assembly. In terms of national politics, the city is part of the Kumamoto 4th district of the lower house of the Diet of Japan.

Economy

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Kamiamakusa has a mixed economy dominated by agriculture, commercial fishing and light manufacturing. Tourism also plays a major role.

Education

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Kamiamakusa has 11 public elementary schools and six public junior high schools operated by the city government and one public high school operated by the Kumamoto Prefectural Board of Education.

Transportation

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Railways

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Kamiamakusa has no passenger railway service. The nearest train station is Misumi Station on the JR Kyushu Misumi Line in Uki City.

Highways

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Local attractions

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Notable people from Kamiamakusa

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References

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  1. ^ "Kamiamakusa City official statistics" (in Japanese). Japan.
  2. ^ a b 気象庁 / 平年値(年・月ごとの値). JMA. Retrieved April 16, 2022.
  3. ^ a b 観測史上1~10位の値(年間を通じての値). JMA. Retrieved April 16, 2022.
  4. ^ a b Kami-Amakusa population statistics
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