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Monthly climate in Kajaani, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Kajaani features a subarctic climate (Dfc). Temperatures typically range between -8 °C (17 °F) and 16 °C (61 °F) through the year, but rarely can drop to -30 °C (-22 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 793 mm (31.2 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually. Kajaani enjoys an average of 2946 hours of sunshine throughout the year, and daylight varies from 4 hours 16 minutes to 20 hours 53 minutes per day.

Monthly average temperatures in Kajaani, Finland

The warmest months in Kajaani are June, July and August, with daily mean temperatures ranging from 14 to 16 °C (58 - 61 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (17 - 23 °F) throughout the day. On average each year, Kajaani experiences 7 days above 25 °C (77.0 °F) and 172 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Kajaani. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum5°C
(41°F)		4°C
(40°F)		10°C
(51°F)		19°C
(66°F)		26°C
(79°F)		28°C
(83°F)		30°C
(86°F)		29°C
(85°F)		22°C
(72°F)		18°C
(64°F)		9°C
(48°F)		3°C
(38°F)
Mean maximum2°C
(36°F)		3°C
(37°F)		7°C
(45°F)		13°C
(55°F)		20°C
(69°F)		24°C
(76°F)		26°C
(80°F)		24°C
(75°F)		19°C
(66°F)		12°C
(55°F)		7°C
(44°F)		2°C
(36°F)
Average high-5°C
(23°F)		-6°C
(22°F)		-1°C
(31°F)		5°C
(41°F)		11°C
(51°F)		18°C
(64°F)		20°C
(68°F)		17°C
(63°F)		12°C
(54°F)		5°C
(42°F)		1°C
(33°F)		-3°C
(26°F)
Daily mean-8°C
(18°F)		-8°C
(17°F)		-4°C
(24°F)		1°C
(34°F)		7°C
(44°F)		14°C
(58°F)		16°C
(61°F)		14°C
(58°F)		9°C
(48°F)		4°C
(39°F)		-1°C
(30°F)		-5°C
(23°F)
Average low-10°C
(14°F)		-12°C
(11°F)		-9°C
(17°F)		-4°C
(26°F)		2°C
(36°F)		10°C
(50°F)		12°C
(54°F)		11°C
(51°F)		6°C
(44°F)		2°C
(36°F)		-3°C
(27°F)		-7°C
(20°F)
Mean minimum-25°C
(-13°F)		-23°C
(-9°F)		-21°C
(-5°F)		-12°C
(12°F)		-6°C
(22°F)		5°C
(41°F)		7°C
(45°F)		5°C
(42°F)		0°C
(32°F)		-6°C
(22°F)		-13°C
(9°F)		-16°C
(3°F)
Minimum-30°C
(-22°F)		-28°C
(-18°F)		-26°C
(-15°F)		-15°C
(5°F)		-8°C
(18°F)		1°C
(34°F)		7°C
(44°F)		5°C
(41°F)		-2°C
(28°F)		-8°C
(18°F)		-19°C
(-2°F)		-21°C
(-6°F)

Compare climate in Kajaani with other places

Compare temperature, precipitation, sunshine, UV index in Kajaani, Finland with other places around the world.

Monthly average precipitation in Kajaani, Finland

Kajaani usually has the most precipitation in July, August and October, with an average of 14 rainy days and 93 mm (3.7 inches) of precipitation per month. The driest months in Kajaani are February, March and April. On average, 42 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kajaani. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)45 (1.8)41 (1.6)45 (1.8)42 (1.6)55 (2.2)71 (2.8)94 (3.7)99 (3.9)83 (3.2)86 (3.4)75 (2.9)59 (2.3)
Average precipitation days (≥ 1 mm)12101291011111613161416

Monthly sunshine hours in Kajaani, Finland

The sunniest months in Kajaani are May, June and July, when the sun shines an average of 15 hours 12 minutes a day. Least sunny months in Kajaani: January, November and December receive an average of 1 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kajaani. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours341192543484284824883672421184221
Mean daily daylight hours5h 27m8h 32m11h 49m15h 10m18h 31m20h 53m19h 32m16h 15m12h 56m9h 39m6h 24m4h 16m

Solar UV radiation in Kajaani, Finland

Kajaani experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 6, which corresponds to the Moderate / High category of sun exposure. January, February and November are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 1. For more detailed information, check out our hourly Kajaani UV Index data.

Average daily maximum UV levels by month for Kajaani. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)112456653211