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Monthly climate in Tsukumiura, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Tsukumiura features a humid subtropical climate (Cfa). Temperatures typically range between 7 °C (44 °F) and 28 °C (83 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1854 mm (73.0 inches) and receives 132 rainy days on the 1 mm (0.04 inches) threshold annually. Tsukumiura enjoys an average of 3021 hours of sunshine throughout the year, and daylight varies from 9 hours 59 minutes to 14 hours 17 minutes per day.

Monthly average temperatures in Tsukumiura, Japan

The warmest months in Tsukumiura are July, August and September, with daily mean temperatures ranging from 25 to 28 °C (77 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 8 °C (44 - 47 °F) throughout the day. On average each year, Tsukumiura experiences 113 days above 25 °C (77.0 °F) and 9 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Tsukumiura. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum19°C
(67°F)		23°C
(74°F)		26°C
(79°F)		28°C
(82°F)		31°C
(89°F)		35°C
(95°F)		35°C
(95°F)		37°C
(99°F)		35°C
(95°F)		31°C
(88°F)		25°C
(78°F)		23°C
(74°F)
Mean maximum17°C
(63°F)		19°C
(66°F)		23°C
(74°F)		26°C
(78°F)		30°C
(86°F)		31°C
(88°F)		34°C
(94°F)		35°C
(96°F)		33°C
(92°F)		30°C
(86°F)		23°C
(74°F)		19°C
(66°F)
Average high11°C
(52°F)		12°C
(54°F)		16°C
(62°F)		20°C
(69°F)		24°C
(76°F)		27°C
(80°F)		30°C
(86°F)		32°C
(89°F)		28°C
(83°F)		24°C
(75°F)		18°C
(65°F)		13°C
(55°F)
Daily mean7°C
(44°F)		7°C
(46°F)		11°C
(53°F)		15°C
(60°F)		20°C
(68°F)		23°C
(74°F)		27°C
(81°F)		28°C
(83°F)		25°C
(77°F)		20°C
(67°F)		14°C
(57°F)		8°C
(47°F)
Average low3°C
(37°F)		3°C
(38°F)		7°C
(45°F)		11°C
(51°F)		16°C
(60°F)		20°C
(68°F)		24°C
(76°F)		25°C
(77°F)		22°C
(71°F)		16°C
(61°F)		9°C
(49°F)		5°C
(40°F)
Mean minimum-1°C
(30°F)		-1°C
(30°F)		1°C
(34°F)		4°C
(39°F)		9°C
(49°F)		15°C
(60°F)		22°C
(71°F)		22°C
(72°F)		16°C
(61°F)		10°C
(50°F)		4°C
(39°F)		0°C
(33°F)
Minimum-3°C
(27°F)		-3°C
(26°F)		0°C
(33°F)		2°C
(37°F)		7°C
(45°F)		13°C
(56°F)		20°C
(69°F)		21°C
(69°F)		14°C
(57°F)		8°C
(46°F)		2°C
(36°F)		-1°C
(31°F)

Compare climate in Tsukumiura with other places

Compare temperature, precipitation, sunshine, UV index in Tsukumiura, Japan with other places around the world.

Monthly average precipitation in Tsukumiura, Japan

Tsukumiura usually has the most precipitation in July, September and October, with an average of 16 rainy days and 270 mm (10.6 inches) of precipitation per month. The driest months in Tsukumiura are January, November and December. On average, 53 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tsukumiura. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)56 (2.2)75 (2.9)116 (4.6)110 (4.3)149 (5.9)207 (8.2)336 (13.2)228 (9.0)240 (9.5)233 (9.2)51 (2.0)52 (2.0)
Average precipitation days (≥ 1 mm)3811811142117171066

Monthly sunshine hours in Tsukumiura, Japan

The sunniest months in Tsukumiura are April, May and August, when the sun shines an average of 9 hours 22 minutes a day. Least sunny months in Tsukumiura: January, February and December receive an average of 6 hours 56 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tsukumiura. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours180230264279286258266296253249234220
Mean daily daylight hours10h 13m10h 59m11h 58m12h 59m13h 51m14h 17m14h 4m13h 19m12h 21m11h 19m10h 26m9h 59m

Solar UV radiation in Tsukumiura, Japan

Tsukumiura experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 12 - 12, which corresponds to the Extreme category of sun exposure. January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Tsukumiura UV Index data.

Average daily maximum UV levels by month for Tsukumiura. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)469111211121211764