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Monthly climate in Viljakkala, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Viljakkala 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 -26 °C (-15 °F) or can rise to as high as 33 °C (91 °F). The average annual precipitation amounts to about 727 mm (28.6 inches) and receives 138 rainy days on the 1 mm (0.04 inches) threshold annually. Viljakkala enjoys an average of 3222 hours of sunshine throughout the year, and daylight varies from 5 hours 25 minutes to 19 hours 23 minutes per day.

Monthly average temperatures in Viljakkala, Finland

The warmest months in Viljakkala 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, Viljakkala experiences 14 days above 25 °C (77.0 °F) and 145 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Viljakkala. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		7°C
(44°F)		11°C
(52°F)		21°C
(69°F)		28°C
(82°F)		33°C
(91°F)		31°C
(88°F)		30°C
(87°F)		23°C
(74°F)		19°C
(66°F)		12°C
(54°F)		5°C
(42°F)
Mean maximum4°C
(39°F)		4°C
(40°F)		9°C
(48°F)		15°C
(60°F)		24°C
(76°F)		26°C
(80°F)		28°C
(83°F)		26°C
(79°F)		20°C
(69°F)		15°C
(59°F)		9°C
(49°F)		4°C
(40°F)
Average high-2°C
(29°F)		-2°C
(28°F)		2°C
(35°F)		7°C
(45°F)		14°C
(58°F)		20°C
(69°F)		21°C
(71°F)		19°C
(67°F)		14°C
(57°F)		8°C
(46°F)		3°C
(38°F)		-1°C
(31°F)
Daily mean-4°C
(25°F)		-5°C
(23°F)		-2°C
(29°F)		3°C
(37°F)		9°C
(49°F)		16°C
(61°F)		17°C
(63°F)		15°C
(60°F)		11°C
(51°F)		6°C
(42°F)		2°C
(35°F)		-2°C
(28°F)
Average low-6°C
(21°F)		-8°C
(18°F)		-5°C
(22°F)		-2°C
(29°F)		4°C
(39°F)		10°C
(51°F)		12°C
(54°F)		11°C
(52°F)		7°C
(46°F)		3°C
(38°F)		-0°C
(32°F)		-4°C
(25°F)
Mean minimum-20°C
(-4°F)		-19°C
(-3°F)		-17°C
(2°F)		-9°C
(16°F)		-3°C
(27°F)		5°C
(42°F)		7°C
(45°F)		5°C
(42°F)		1°C
(33°F)		-5°C
(24°F)		-8°C
(18°F)		-11°C
(12°F)
Minimum-26°C
(-15°F)		-25°C
(-12°F)		-24°C
(-11°F)		-13°C
(9°F)		-5°C
(24°F)		2°C
(35°F)		5°C
(42°F)		5°C
(41°F)		-2°C
(28°F)		-8°C
(19°F)		-13°C
(10°F)		-20°C
(-4°F)

Compare climate in Viljakkala with other places

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

Monthly average precipitation in Viljakkala, Finland

Viljakkala usually has the most precipitation in June, August and October, with an average of 12 rainy days and 80 mm (3.1 inches) of precipitation per month. The driest months in Viljakkala are February, March and April. On average, 44 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Viljakkala. 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 (1.6)45 (1.8)44 (1.7)52 (2.0)68 (2.7)65 (2.6)93 (3.7)67 (2.6)78 (3.1)63 (2.5)65 (2.5)
Average precipitation days (≥ 1 mm)12810101010121313151114

Monthly sunshine hours in Viljakkala, Finland

The sunniest months in Viljakkala are May, June and July, when the sun shines an average of 15 hours 20 minutes a day. Least sunny months in Viljakkala: January, November and December receive an average of 2 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Viljakkala. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours441492613474444944724092801739450
Mean daily daylight hours6h 20m8h 55m11h 50m14h 49m17h 39m19h 23m18h 26m15h 46m12h 51m9h 54m7h 6m5h 25m

Solar UV radiation in Viljakkala, Finland

Viljakkala 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 Viljakkala UV Index data.

Average daily maximum UV levels by month for Viljakkala. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113456653211