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Monthly climate in Shiranuka, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Shiranuka features a humid continental climate (Dfb). Temperatures typically range between -5 °C (23 °F) and 18 °C (65 °F) through the year, but rarely can drop to -19 °C (-3 °F) or can rise to as high as 28 °C (83 °F). The average annual precipitation amounts to about 1219 mm (48.0 inches) and receives 119 rainy days on the 1 mm (0.04 inches) threshold annually. Shiranuka enjoys an average of 2921 hours of sunshine throughout the year, and daylight varies from 9 hours 3 minutes to 15 hours 16 minutes per day.

Monthly average temperatures in Shiranuka, Japan

The warmest months in Shiranuka are July, August and September, with daily mean temperatures ranging from 16 to 18 °C (62 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -1 °C (23 - 30 °F) throughout the day. On average each year, Shiranuka experiences 3 days above 25 °C (77.0 °F) and 125 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Shiranuka. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum6°C
(43°F)		5°C
(41°F)		12°C
(54°F)		17°C
(63°F)		25°C
(78°F)		22°C
(72°F)		27°C
(81°F)		28°C
(83°F)		26°C
(79°F)		21°C
(71°F)		16°C
(61°F)		12°C
(54°F)
Mean maximum4°C
(39°F)		4°C
(39°F)		9°C
(49°F)		14°C
(58°F)		20°C
(68°F)		18°C
(65°F)		25°C
(77°F)		27°C
(80°F)		24°C
(75°F)		20°C
(68°F)		15°C
(58°F)		8°C
(47°F)
Average high-2°C
(29°F)		-2°C
(29°F)		3°C
(37°F)		7°C
(46°F)		12°C
(54°F)		14°C
(58°F)		18°C
(65°F)		20°C
(68°F)		19°C
(66°F)		14°C
(58°F)		8°C
(47°F)		1°C
(34°F)
Daily mean-5°C
(23°F)		-5°C
(23°F)		-0°C
(32°F)		4°C
(40°F)		9°C
(49°F)		12°C
(54°F)		16°C
(62°F)		18°C
(65°F)		16°C
(62°F)		11°C
(53°F)		5°C
(42°F)		-1°C
(30°F)
Average low-8°C
(18°F)		-9°C
(16°F)		-3°C
(26°F)		1°C
(34°F)		6°C
(44°F)		10°C
(50°F)		15°C
(58°F)		16°C
(61°F)		14°C
(58°F)		9°C
(48°F)		3°C
(37°F)		-4°C
(25°F)
Mean minimum-14°C
(7°F)		-15°C
(5°F)		-10°C
(14°F)		-2°C
(28°F)		2°C
(37°F)		6°C
(44°F)		11°C
(51°F)		13°C
(55°F)		9°C
(49°F)		4°C
(39°F)		-3°C
(27°F)		-10°C
(14°F)
Minimum-16°C
(4°F)		-19°C
(-3°F)		-12°C
(11°F)		-4°C
(26°F)		2°C
(36°F)		4°C
(40°F)		9°C
(48°F)		12°C
(53°F)		7°C
(46°F)		2°C
(36°F)		-6°C
(21°F)		-12°C
(11°F)

Compare climate in Shiranuka with other places

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

Monthly average precipitation in Shiranuka, Japan

Shiranuka usually has the most precipitation in August, September and October, with an average of 12 rainy days and 162 mm (6.4 inches) of precipitation per month. The driest months in Shiranuka are January, February and December. On average, 47 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Shiranuka. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)46 (1.8)42 (1.6)99 (3.9)84 (3.3)104 (4.1)112 (4.4)109 (4.3)166 (6.5)124 (4.9)196 (7.7)84 (3.3)54 (2.1)
Average precipitation days (≥ 1 mm)66101112121014111296

Monthly sunshine hours in Shiranuka, Japan

The sunniest months in Shiranuka are April, May and June, when the sun shines an average of 9 hours 27 minutes a day. Least sunny months in Shiranuka: January, November and December receive an average of 6 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Shiranuka. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours169219259280297282274249243228203213
Mean daily daylight hours9h 23m10h 30m11h 56m13h 24m14h 38m15h 16m14h 57m13h 52m12h 28m11h 0m9h 43m9h 3m

Solar UV radiation in Shiranuka, Japan

Shiranuka experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Shiranuka UV Index data.

Average daily maximum UV levels by month for Shiranuka. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)23588101098532