Satsuma has a humid subtropical climate (Köppen climate classificationCfa) with hot summers and mild winters. Precipitation is significant throughout the year, and is heavier in summer, especially the months of June and July. The average annual temperature in Satsuma is 16.6 °C (61.9 °F). The average annual rainfall is 2,762.7 mm (108.77 in) with June as the wettest month. The temperatures are highest on average in August, at around 27.2 °C (81.0 °F), and lowest in January, at around 5.9 °C (42.6 °F).[2] Its record high is 37.6 °C (99.7 °F), reached on 18 August 2020, and its record low is −10.8 °C (12.6 °F), reached on 25 January 2016.[3]
Climate data for Satsuma (1991−2020 normals, extremes 1976−present)
Per Japanese census data, the population of Satsuma in 2020 is 20,243 people.[4] The town's population has been slowly declining since Satsuma's census began in 1950, and the town's population shows no sign of picking up as of 2020.
Historical population
Year
Pop.
±%
1950
50,621
—
1955
49,437
−2.3%
1960
46,010
−6.9%
1965
40,343
−12.3%
1970
35,005
−13.2%
1975
31,589
−9.8%
1980
30,650
−3.0%
1985
30,284
−1.2%
1990
29,063
−4.0%
1995
28,141
−3.2%
2000
27,331
−2.9%
2005
25,688
−6.0%
2010
24,120
−6.1%
2015
22,400
−7.1%
2020
20,243
−9.6%
History
Satsuma is part of ancient Satsuma Province. It was part of Satsuma Domain in the Edo Period. The villages of Tsuruta, Yamazaki, Sashi, Miyanojo, Nagano, and Omura were established on April 1, 1889 with the creation of the modern municipalities system. Miyanojo was raised to town status on January 1, 1919, followed by Yamazaki on November 3, 1953. The villages of Nagano Village, Gyuma, and Nakatsugawa Village merged to form Satsuma Town on December 1, 1954. On March 22, 2005 the towns of Miyanojō, Tsuruda merged with Satsuma.
Government
Satsuma has a mayor-council form of government with a directly elected mayor and a unicameral town council of 16 members. Satsuma contributes one member to the Kagoshima Prefectural Assembly. In terms of national politics, the town is part of the Kagoshima 3rd district of the lower house of the Diet of Japan.
Economy
The main economy activity of Satsuma is agriculture and light manufacturing.
Education
Satsuma has 6 public elementary schools and one public junior high school operated by the town government, and one public high school operated by the Kagoshima Prefectural Board of Education.
Transportation
Railways
Since the abolition of the JNR Miyanojo Line in 1987, the town has had no passenger railway service. The nearest train station is the JR KyushuSendai Station.