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Monthly climate in Kirkkonummi, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Kirkkonummi features a humid continental climate (Dfb). Temperatures typically range between -2 °C (29 °F) and 17 °C (63 °F) through the year, but rarely can drop to -15 °C (5 °F) or can rise to as high as 25 °C (77 °F). The average annual precipitation amounts to about 830 mm (32.7 inches) and receives 145 rainy days on the 1 mm (0.04 inches) threshold annually. Kirkkonummi enjoys an average of 3343 hours of sunshine throughout the year, and daylight varies from 5 hours 57 minutes to 18 hours 44 minutes per day.

Monthly average temperatures in Kirkkonummi, Finland

The warmest months in Kirkkonummi are June, July and August, with daily mean temperatures ranging from 14 to 17 °C (58 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -2 to 0 °C (29 - 32 °F) throughout the day. On average each year, Kirkkonummi experiences 0 days above 25 °C (77.0 °F) and 71 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Kirkkonummi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		5°C
(42°F)		7°C
(45°F)		10°C
(51°F)		18°C
(65°F)		23°C
(73°F)		25°C
(77°F)		24°C
(75°F)		20°C
(68°F)		15°C
(60°F)		12°C
(54°F)		7°C
(45°F)
Mean maximum5°C
(41°F)		3°C
(38°F)		4°C
(40°F)		8°C
(46°F)		14°C
(57°F)		18°C
(65°F)		22°C
(72°F)		21°C
(69°F)		18°C
(65°F)		13°C
(56°F)		10°C
(51°F)		6°C
(43°F)
Average high1°C
(34°F)		-0°C
(32°F)		1°C
(34°F)		4°C
(40°F)		9°C
(49°F)		15°C
(60°F)		18°C
(65°F)		18°C
(65°F)		14°C
(58°F)		10°C
(50°F)		6°C
(44°F)		3°C
(37°F)
Daily mean-0°C
(32°F)		-2°C
(29°F)		-0°C
(32°F)		3°C
(38°F)		8°C
(46°F)		14°C
(58°F)		17°C
(63°F)		17°C
(63°F)		13°C
(56°F)		9°C
(48°F)		5°C
(42°F)		1°C
(35°F)
Average low-2°C
(29°F)		-3°C
(27°F)		-1°C
(30°F)		2°C
(36°F)		7°C
(44°F)		13°C
(56°F)		16°C
(62°F)		16°C
(61°F)		13°C
(55°F)		8°C
(46°F)		4°C
(40°F)		-0°C
(32°F)
Mean minimum-9°C
(16°F)		-9°C
(16°F)		-7°C
(19°F)		-2°C
(29°F)		2°C
(35°F)		9°C
(48°F)		13°C
(55°F)		13°C
(55°F)		8°C
(47°F)		2°C
(35°F)		-1°C
(31°F)		-4°C
(25°F)
Minimum-15°C
(5°F)		-14°C
(8°F)		-12°C
(10°F)		-4°C
(25°F)		1°C
(34°F)		6°C
(42°F)		11°C
(52°F)		11°C
(52°F)		6°C
(44°F)		0°C
(33°F)		-4°C
(25°F)		-10°C
(15°F)

Compare climate in Kirkkonummi with other places

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

Monthly average precipitation in Kirkkonummi, Finland

Kirkkonummi usually has the most precipitation in September, October and November, with an average of 16 rainy days and 97 mm (3.8 inches) of precipitation per month. The driest months in Kirkkonummi are April, May and June. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kirkkonummi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)61 (2.4)52 (2.1)54 (2.1)38 (1.5)49 (1.9)48 (1.9)73 (2.9)82 (3.2)83 (3.3)122 (4.8)86 (3.4)82 (3.2)
Average precipitation days (≥ 1 mm)13121288691213201517

Monthly sunshine hours in Kirkkonummi, Finland

The sunniest months in Kirkkonummi are May, June and July, when the sun shines an average of 15 hours 27 minutes a day. Least sunny months in Kirkkonummi: January, November and December receive an average of 2 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kirkkonummi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours5915526136445248948040429419611965
Mean daily daylight hours6h 46m9h 8m11h 51m14h 38m17h 13m18h 44m17h 55m15h 31m12h 47m10h 3m7h 27m5h 57m

Solar UV radiation in Kirkkonummi, Finland

Kirkkonummi experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 7, 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 Kirkkonummi UV Index data.

Average daily maximum UV levels by month for Kirkkonummi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113457754211