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Monthly climate in Suomenniemi, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Suomenniemi features a subarctic climate (Dfc). Temperatures typically range between -5 °C (23 °F) and 18 °C (64 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 727 mm (28.6 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually. Suomenniemi enjoys an average of 3099 hours of sunshine throughout the year, and daylight varies from 5 hours 33 minutes to 19 hours 13 minutes per day.

Monthly average temperatures in Suomenniemi, Finland

The warmest months in Suomenniemi are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (61 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -3 °C (23 - 27 °F) throughout the day. On average each year, Suomenniemi experiences 11 days above 25 °C (77.0 °F) and 134 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Suomenniemi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		6°C
(44°F)		11°C
(53°F)		19°C
(66°F)		27°C
(81°F)		30°C
(87°F)		31°C
(88°F)		29°C
(85°F)		22°C
(72°F)		18°C
(64°F)		11°C
(52°F)		5°C
(41°F)
Mean maximum3°C
(38°F)		4°C
(39°F)		8°C
(47°F)		14°C
(58°F)		22°C
(72°F)		25°C
(78°F)		28°C
(82°F)		25°C
(77°F)		19°C
(67°F)		14°C
(58°F)		9°C
(48°F)		3°C
(38°F)
Average high-2°C
(28°F)		-3°C
(27°F)		1°C
(34°F)		6°C
(44°F)		13°C
(56°F)		20°C
(68°F)		21°C
(70°F)		19°C
(67°F)		14°C
(57°F)		8°C
(47°F)		3°C
(38°F)		-1°C
(30°F)
Daily mean-5°C
(24°F)		-5°C
(23°F)		-2°C
(29°F)		3°C
(37°F)		9°C
(49°F)		16°C
(61°F)		18°C
(64°F)		16°C
(61°F)		11°C
(52°F)		6°C
(43°F)		2°C
(36°F)		-3°C
(27°F)
Average low-7°C
(20°F)		-8°C
(18°F)		-6°C
(22°F)		-1°C
(30°F)		5°C
(41°F)		12°C
(53°F)		14°C
(57°F)		13°C
(55°F)		8°C
(47°F)		4°C
(40°F)		0°C
(33°F)		-4°C
(25°F)
Mean minimum-21°C
(-5°F)		-19°C
(-1°F)		-17°C
(2°F)		-8°C
(18°F)		-1°C
(30°F)		6°C
(43°F)		9°C
(48°F)		8°C
(47°F)		3°C
(37°F)		-2°C
(28°F)		-7°C
(20°F)		-11°C
(12°F)
Minimum-26°C
(-14°F)		-26°C
(-15°F)		-24°C
(-12°F)		-12°C
(10°F)		-3°C
(28°F)		2°C
(36°F)		8°C
(46°F)		7°C
(46°F)		0°C
(33°F)		-4°C
(25°F)		-9°C
(16°F)		-21°C
(-5°F)

Compare climate in Suomenniemi with other places

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

Monthly average precipitation in Suomenniemi, Finland

Suomenniemi usually has the most precipitation in July, August and October, with an average of 14 rainy days and 82 mm (3.2 inches) of precipitation per month. The driest months in Suomenniemi are January, March and April. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Suomenniemi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)47 (1.9)48 (1.9)44 (1.7)43 (1.7)54 (2.1)59 (2.3)81 (3.2)89 (3.5)67 (2.6)76 (3.0)49 (1.9)69 (2.7)
Average precipitation days (≥ 1 mm)121112121111121512151115

Monthly sunshine hours in Suomenniemi, Finland

The sunniest months in Suomenniemi are May, June and July, when the sun shines an average of 15 hours 5 minutes a day. Least sunny months in Suomenniemi: January, November and December receive an average of 1 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Suomenniemi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours361312443564344754773882661768227
Mean daily daylight hours6h 26m8h 58m11h 50m14h 46m17h 33m19h 13m18h 18m15h 42m12h 50m9h 56m7h 11m5h 33m

Solar UV radiation in Suomenniemi, Finland

Suomenniemi 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 Suomenniemi UV Index data.

Average daily maximum UV levels by month for Suomenniemi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113457753211