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Monthly climate in Nastola, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Nastola features a humid continental climate (Dfb). Temperatures typically range between -5 °C (24 °F) and 17 °C (64 °F) through the year, but rarely can drop to -27 °C (-16 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 728 mm (28.7 inches) and receives 141 rainy days on the 1 mm (0.04 inches) threshold annually. Nastola enjoys an average of 3031 hours of sunshine throughout the year, and daylight varies from 5 hours 41 minutes to 19 hours 3 minutes per day.

Monthly average temperatures in Nastola, Finland

The warmest months in Nastola are June, July and August, with daily mean temperatures ranging from 16 to 17 °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 -2 °C (24 - 28 °F) throughout the day. On average each year, Nastola experiences 12 days above 25 °C (77.0 °F) and 133 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Nastola. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(46°F)		7°C
(46°F)		11°C
(52°F)		20°C
(69°F)		28°C
(82°F)		31°C
(88°F)		31°C
(88°F)		31°C
(88°F)		23°C
(73°F)		18°C
(64°F)		12°C
(53°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)		25°C
(78°F)		28°C
(82°F)		26°C
(79°F)		20°C
(69°F)		15°C
(58°F)		9°C
(49°F)		4°C
(40°F)
Average high-2°C
(29°F)		-2°C
(28°F)		2°C
(36°F)		7°C
(45°F)		14°C
(58°F)		20°C
(69°F)		21°C
(70°F)		20°C
(68°F)		14°C
(58°F)		8°C
(47°F)		4°C
(39°F)		-1°C
(31°F)
Daily mean-4°C
(25°F)		-5°C
(24°F)		-2°C
(29°F)		3°C
(38°F)		10°C
(50°F)		16°C
(61°F)		17°C
(64°F)		16°C
(61°F)		11°C
(52°F)		6°C
(43°F)		2°C
(36°F)		-2°C
(28°F)
Average low-6°C
(21°F)		-7°C
(19°F)		-5°C
(23°F)		-1°C
(31°F)		5°C
(41°F)		11°C
(53°F)		13°C
(56°F)		12°C
(54°F)		8°C
(47°F)		4°C
(39°F)		0°C
(33°F)		-4°C
(25°F)
Mean minimum-20°C
(-4°F)		-18°C
(-1°F)		-17°C
(2°F)		-7°C
(19°F)		-1°C
(30°F)		6°C
(43°F)		9°C
(48°F)		7°C
(45°F)		2°C
(35°F)		-3°C
(27°F)		-7°C
(19°F)		-11°C
(13°F)
Minimum-25°C
(-13°F)		-27°C
(-16°F)		-25°C
(-13°F)		-11°C
(12°F)		-2°C
(28°F)		2°C
(36°F)		8°C
(46°F)		6°C
(43°F)		-1°C
(31°F)		-5°C
(23°F)		-9°C
(15°F)		-20°C
(-4°F)

Compare climate in Nastola with other places

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

Monthly average precipitation in Nastola, Finland

Nastola usually has the most precipitation in July, August and October, with an average of 13 rainy days and 79 mm (3.1 inches) of precipitation per month. The driest months in Nastola are February, March and April. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Nastola. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)49 (1.9)46 (1.8)44 (1.8)47 (1.9)54 (2.1)62 (2.4)77 (3.0)84 (3.3)61 (2.4)77 (3.0)54 (2.1)72 (2.8)
Average precipitation days (≥ 1 mm)111111111011111311151115

Monthly sunshine hours in Nastola, Finland

The sunniest months in Nastola are May, June and July, when the sun shines an average of 14 hours 48 minutes a day. Least sunny months in Nastola: January, November and December receive an average of 1 hours 45 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nastola. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours431332383464264724633832511538236
Mean daily daylight hours6h 33m9h 1m11h 51m14h 44m17h 26m19h 3m18h 11m15h 38m12h 49m9h 58m7h 17m5h 41m

Solar UV radiation in Nastola, Finland

Nastola 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 Nastola UV Index data.

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