Yamaga 山鹿市
City
Yamaga City Hall
Flag Seal
Location of Yamaga in Kumamoto Prefecture
Yamaga Location in Japan
Coordinates: 33°1′1″N 130°40′58″E / 33.01694°N 130.68278°E / 33.01694; 130.68278
Country	Japan
Region	Kyūshū
Prefecture	Kumamoto
Government
• Mayor	Jun'ichi Hayata
Area
• Total	299.67 km² (115.70 sq mi)
Population (October 1, 2020)
• Total	49,082
• Density	163.8/km² (424/sq mi)
Time zone	UTC+09:00 (JST)
Postal code	861-0592
Phone number	0968-43-1117
Address	987-3 Yamaga, Yamaga-shi, Kumamoto-ken
Climate	Cfa
Website	Official website

Symbols

Bird	Horornis diphone
Flower	Rhododendron
Tree	Osmanthus fragrans

Yamaga (山鹿市, Yamaga-shi) is a city in Kumamoto Prefecture, Japan. The city was founded on April 1, 1954.

On January 15, 2005, Yamaga absorbed the towns of Kahoku, Kamoto, Kaō and Kikuka (all from Kamoto District) to create the new and expanded city of Yamaga.

As of March 31, 2017, the city has a population of 53,404 and a population density of 180 persons per km².^[1] The total area is 299.67 km².^{[citation needed]}

Geography

Surrounding municipalities

Climate

Yamaga 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 Yamaga is 14.9 °C (58.8 °F). The average annual rainfall is 2,177.9 mm (85.74 in) with July as the wettest month. The temperatures are highest on average in August, at around 26.3 °C (79.3 °F), and lowest in January, at around 3.5 °C (38.3 °F).^[2] The highest temperature ever recorded in Yamaga was 36.9 °C (98.4 °F) on 21 August 2013 and 8 August 2015; the coldest temperature ever recorded was −10.1 °C (13.8 °F) on 19 February 1977.^[3]

Climate data for Kahoku, Yamaga (1991−2020 normals, extremes 1977−present)
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	22.0 (71.6)	23.3 (73.9)	26.0 (78.8)	30.1 (86.2)	35.3 (95.5)	34.9 (94.8)	36.8 (98.2)	36.9 (98.4)	35.8 (96.4)	32.3 (90.1)	26.3 (79.3)	24.0 (75.2)	36.9 (98.4)
Mean daily maximum °C (°F)	9.7 (49.5)	11.4 (52.5)	15.2 (59.4)	20.7 (69.3)	25.3 (77.5)	27.3 (81.1)	30.6 (87.1)	32.0 (89.6)	28.9 (84.0)	23.7 (74.7)	17.6 (63.7)	11.9 (53.4)	21.2 (70.2)
Daily mean °C (°F)	3.5 (38.3)	4.9 (40.8)	8.4 (47.1)	13.6 (56.5)	18.4 (65.1)	22.1 (71.8)	25.7 (78.3)	26.3 (79.3)	22.9 (73.2)	17.0 (62.6)	10.9 (51.6)	5.4 (41.7)	14.9 (58.9)
Mean daily minimum °C (°F)	−1.5 (29.3)	−0.9 (30.4)	2.1 (35.8)	6.8 (44.2)	11.9 (53.4)	17.7 (63.9)	22.0 (71.6)	22.0 (71.6)	18.2 (64.8)	11.4 (52.5)	5.3 (41.5)	0.2 (32.4)	9.6 (49.3)
Record low °C (°F)	−8.8 (16.2)	−10.1 (13.8)	−6.7 (19.9)	−3.9 (25.0)	0.9 (33.6)	6.3 (43.3)	12.7 (54.9)	13.7 (56.7)	6.2 (43.2)	−0.7 (30.7)	−3.7 (25.3)	−7.4 (18.7)	−10.1 (13.8)
Average precipitation mm (inches)	59.3 (2.33)	84.8 (3.34)	136.3 (5.37)	158.7 (6.25)	196.7 (7.74)	449.0 (17.68)	452.5 (17.81)	233.2 (9.18)	167.2 (6.58)	86.4 (3.40)	87.8 (3.46)	66.1 (2.60)	2,177.9 (85.74)
Average precipitation days (≥ 1.0 mm)	7.8	8.6	10.9	10.5	10.1	14.2	14.1	11.5	9.6	6.8	7.9	7.9	119.9
Mean monthly sunshine hours	119.5	128.6	162.2	186.2	196.4	124.6	157.2	190.2	169.8	179.8	143.4	126.6	1,884.6
Source: Japan Meteorological Agency^[3]^[2]