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Monthly climate in Hollola, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Hollola features a subarctic climate (Dfc). Temperatures typically range between -5 °C (24 °F) and 17 °C (64 °F) through the year, but rarely can drop to -28 °C (-18 °F) or can rise to as high as 32 °C (89 °F). The average annual precipitation amounts to about 733 mm (28.9 inches) and receives 146 rainy days on the 1 mm (0.04 inches) threshold annually. Hollola enjoys an average of 3058 hours of sunshine throughout the year, and daylight varies from 5 hours 39 minutes to 19 hours 6 minutes per day.

Monthly average temperatures in Hollola, Finland

The warmest months in Hollola 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, Hollola experiences 14 days above 25 °C (77.0 °F) and 137 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hollola. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(46°F)		7°C
(46°F)		11°C
(52°F)		21°C
(70°F)		28°C
(82°F)		32°C
(89°F)		31°C
(89°F)		31°C
(87°F)		23°C
(74°F)		18°C
(65°F)		12°C
(53°F)		5°C
(42°F)
Mean maximum4°C
(39°F)		4°C
(40°F)		9°C
(49°F)		16°C
(61°F)		25°C
(77°F)		26°C
(79°F)		28°C
(83°F)		26°C
(79°F)		21°C
(70°F)		15°C
(59°F)		10°C
(49°F)		4°C
(40°F)
Average high-2°C
(29°F)		-2°C
(28°F)		2°C
(36°F)		8°C
(46°F)		15°C
(59°F)		21°C
(69°F)		21°C
(71°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-7°C
(21°F)		-8°C
(19°F)		-5°C
(23°F)		-1°C
(30°F)		4°C
(40°F)		11°C
(52°F)		13°C
(55°F)		12°C
(53°F)		8°C
(46°F)		4°C
(39°F)		0°C
(33°F)		-4°C
(25°F)
Mean minimum-20°C
(-4°F)		-19°C
(-1°F)		-17°C
(2°F)		-8°C
(18°F)		-2°C
(28°F)		5°C
(41°F)		8°C
(47°F)		7°C
(44°F)		1°C
(34°F)		-3°C
(27°F)		-8°C
(18°F)		-11°C
(12°F)
Minimum-25°C
(-13°F)		-28°C
(-18°F)		-25°C
(-13°F)		-12°C
(11°F)		-3°C
(26°F)		0°C
(33°F)		7°C
(45°F)		5°C
(42°F)		-2°C
(29°F)		-5°C
(23°F)		-10°C
(14°F)		-21°C
(-5°F)

Compare climate in Hollola with other places

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

Monthly average precipitation in Hollola, Finland

Hollola usually has the most precipitation in July, August and October, with an average of 13 rainy days and 80 mm (3.1 inches) of precipitation per month. The driest months in Hollola are February, March and April. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hollola. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)49 (1.9)44 (1.7)45 (1.8)47 (1.9)56 (2.2)64 (2.5)80 (3.1)81 (3.2)65 (2.6)79 (3.1)54 (2.1)70 (2.8)
Average precipitation days (≥ 1 mm)111111121112121312151115

Monthly sunshine hours in Hollola, Finland

The sunniest months in Hollola are May, June and July, when the sun shines an average of 14 hours 53 minutes a day. Least sunny months in Hollola: January, November and December receive an average of 1 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hollola. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours431362413484284744663852561548338
Mean daily daylight hours6h 31m9h 0m11h 51m14h 44m17h 28m19h 6m18h 12m15h 39m12h 49m9h 58m7h 15m5h 39m

Solar UV radiation in Hollola, Finland

Hollola 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 Hollola UV Index data.

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