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Monthly climate in Kushiro, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Kushiro features a humid continental climate (Dfb). Temperatures typically range between -4 °C (25 °F) and 18 °C (65 °F) through the year, but rarely can drop to -18 °C (-1 °F) or can rise to as high as 27 °C (81 °F). The average annual precipitation amounts to about 1070 mm (42.1 inches) and receives 109 rainy days on the 1 mm (0.04 inches) threshold annually. Kushiro enjoys an average of 2910 hours of sunshine throughout the year, and daylight varies from 9 hours 3 minutes to 15 hours 17 minutes per day.

Monthly average temperatures in Kushiro, Japan

The warmest months in Kushiro are July, August and September, with daily mean temperatures ranging from 16 to 18 °C (61 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to 0 °C (25 - 32 °F) throughout the day. On average each year, Kushiro experiences 0 days above 25 °C (77.0 °F) and 113 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Kushiro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		6°C
(43°F)		11°C
(53°F)		16°C
(61°F)		23°C
(74°F)		20°C
(69°F)		25°C
(78°F)		27°C
(81°F)		25°C
(77°F)		21°C
(70°F)		16°C
(61°F)		13°C
(55°F)
Mean maximum5°C
(41°F)		5°C
(40°F)		9°C
(48°F)		13°C
(56°F)		18°C
(65°F)		17°C
(63°F)		23°C
(74°F)		26°C
(79°F)		23°C
(74°F)		20°C
(68°F)		15°C
(59°F)		9°C
(49°F)
Average high-1°C
(30°F)		-1°C
(30°F)		3°C
(38°F)		7°C
(45°F)		11°C
(53°F)		14°C
(57°F)		18°C
(64°F)		20°C
(68°F)		19°C
(66°F)		15°C
(59°F)		9°C
(49°F)		2°C
(36°F)
Daily mean-4°C
(26°F)		-4°C
(25°F)		1°C
(33°F)		4°C
(40°F)		9°C
(49°F)		12°C
(54°F)		16°C
(61°F)		18°C
(65°F)		17°C
(62°F)		12°C
(55°F)		7°C
(44°F)		-0°C
(32°F)
Average low-6°C
(21°F)		-7°C
(19°F)		-2°C
(28°F)		2°C
(35°F)		7°C
(44°F)		10°C
(50°F)		15°C
(58°F)		17°C
(62°F)		15°C
(59°F)		10°C
(50°F)		4°C
(39°F)		-3°C
(28°F)
Mean minimum-13°C
(9°F)		-14°C
(8°F)		-9°C
(16°F)		-2°C
(28°F)		3°C
(37°F)		7°C
(44°F)		11°C
(52°F)		13°C
(56°F)		10°C
(51°F)		5°C
(42°F)		-2°C
(29°F)		-9°C
(17°F)
Minimum-14°C
(7°F)		-18°C
(-1°F)		-12°C
(11°F)		-5°C
(23°F)		2°C
(37°F)		5°C
(41°F)		9°C
(48°F)		12°C
(54°F)		9°C
(48°F)		3°C
(38°F)		-5°C
(23°F)		-10°C
(15°F)

Compare climate in Kushiro with other places

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

Monthly average precipitation in Kushiro, Japan

Kushiro usually has the most precipitation in August, September and October, with an average of 11 rainy days and 137 mm (5.4 inches) of precipitation per month. The driest months in Kushiro are January, February and December. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kushiro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)44 (1.7)39 (1.5)90 (3.5)73 (2.9)93 (3.7)92 (3.6)101 (4.0)134 (5.3)105 (4.2)171 (6.7)73 (2.9)56 (2.2)
Average precipitation days (≥ 1 mm)66991110912101287

Monthly sunshine hours in Kushiro, Japan

The sunniest months in Kushiro are April, May and June, when the sun shines an average of 9 hours 23 minutes a day. Least sunny months in Kushiro: January, November and December receive an average of 6 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kushiro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours169219256279293280275248246225202213
Mean daily daylight hours9h 23m10h 30m11h 56m13h 24m14h 38m15h 17m14h 58m13h 52m12h 28m11h 0m9h 43m9h 3m

Solar UV radiation in Kushiro, Japan

Kushiro 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 Kushiro UV Index data.

Average daily maximum UV levels by month for Kushiro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2358891098532