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Monthly climate in Sysmae, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sysmae features a subarctic climate (Dfc). Temperatures typically range between -5 °C (23 °F) and 17 °C (63 °F) through the year, but rarely can drop to -29 °C (-19 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 730 mm (28.7 inches) and receives 145 rainy days on the 1 mm (0.04 inches) threshold annually. Sysmae enjoys an average of 3049 hours of sunshine throughout the year, and daylight varies from 5 hours 29 minutes to 19 hours 18 minutes per day.

Monthly average temperatures in Sysmae, Finland

The warmest months in Sysmae are June, July and August, with daily mean temperatures ranging from 15 to 17 °C (60 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -2 °C (23 - 28 °F) throughout the day. On average each year, Sysmae experiences 11 days above 25 °C (77.0 °F) and 135 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sysmae. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		7°C
(45°F)		12°C
(53°F)		19°C
(66°F)		28°C
(82°F)		31°C
(88°F)		31°C
(87°F)		31°C
(88°F)		22°C
(72°F)		18°C
(64°F)		11°C
(53°F)		5°C
(41°F)
Mean maximum4°C
(39°F)		4°C
(40°F)		9°C
(48°F)		14°C
(58°F)		24°C
(75°F)		25°C
(77°F)		27°C
(81°F)		25°C
(78°F)		20°C
(68°F)		14°C
(58°F)		9°C
(49°F)		4°C
(39°F)
Average high-2°C
(28°F)		-3°C
(27°F)		1°C
(35°F)		7°C
(44°F)		13°C
(56°F)		19°C
(67°F)		21°C
(70°F)		19°C
(67°F)		14°C
(57°F)		8°C
(47°F)		3°C
(39°F)		-1°C
(31°F)
Daily mean-4°C
(24°F)		-5°C
(23°F)		-2°C
(29°F)		3°C
(37°F)		9°C
(48°F)		15°C
(60°F)		17°C
(63°F)		16°C
(61°F)		11°C
(52°F)		6°C
(43°F)		2°C
(36°F)		-2°C
(28°F)
Average low-7°C
(20°F)		-8°C
(18°F)		-6°C
(22°F)		-1°C
(30°F)		4°C
(39°F)		11°C
(51°F)		13°C
(56°F)		12°C
(54°F)		8°C
(47°F)		4°C
(40°F)		1°C
(33°F)		-4°C
(25°F)
Mean minimum-20°C
(-5°F)		-19°C
(-2°F)		-17°C
(1°F)		-8°C
(17°F)		-2°C
(29°F)		5°C
(42°F)		9°C
(48°F)		7°C
(46°F)		2°C
(36°F)		-3°C
(28°F)		-7°C
(20°F)		-11°C
(13°F)
Minimum-26°C
(-14°F)		-29°C
(-19°F)		-25°C
(-13°F)		-13°C
(8°F)		-3°C
(27°F)		1°C
(35°F)		7°C
(45°F)		7°C
(44°F)		0°C
(33°F)		-5°C
(22°F)		-9°C
(16°F)		-21°C
(-5°F)

Compare climate in Sysmae with other places

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

Monthly average precipitation in Sysmae, Finland

Sysmae 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 Sysmae are February, March and April. On average, 43 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sysmae. 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 (1.7)42 (1.7)45 (1.8)57 (2.2)62 (2.5)77 (3.0)89 (3.5)67 (2.6)79 (3.1)56 (2.2)68 (2.7)
Average precipitation days (≥ 1 mm)12101111911121512171114

Monthly sunshine hours in Sysmae, Finland

The sunniest months in Sysmae are May, June and July, when the sun shines an average of 14 hours 55 minutes a day. Least sunny months in Sysmae: January, November and December receive an average of 1 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sysmae. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours421332413514274744703852541537836
Mean daily daylight hours6h 23m8h 57m11h 50m14h 48m17h 36m19h 18m18h 22m15h 44m12h 50m9h 55m7h 9m5h 29m

Solar UV radiation in Sysmae, Finland

Sysmae 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 Sysmae UV Index data.

Average daily maximum UV levels by month for Sysmae. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113456753211