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Monthly climate in Savonlinna, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Savonlinna features a subarctic climate (Dfc). Temperatures typically range between -6 °C (21 °F) and 18 °C (64 °F) through the year, but rarely can drop to -27 °C (-16 °F) or can rise to as high as 31 °C (89 °F). The average annual precipitation amounts to about 723 mm (28.5 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually. Savonlinna enjoys an average of 3128 hours of sunshine throughout the year, and daylight varies from 5 hours 21 minutes to 19 hours 28 minutes per day.

Monthly average temperatures in Savonlinna, Finland

The warmest months in Savonlinna 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 -6 to -4 °C (21 - 26 °F) throughout the day. On average each year, Savonlinna experiences 11 days above 25 °C (77.0 °F) and 139 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Savonlinna. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum6°C
(43°F)		5°C
(41°F)		9°C
(49°F)		19°C
(66°F)		27°C
(80°F)		31°C
(89°F)		31°C
(88°F)		28°C
(83°F)		23°C
(73°F)		17°C
(63°F)		10°C
(50°F)		4°C
(40°F)
Mean maximum3°C
(37°F)		3°C
(38°F)		7°C
(44°F)		13°C
(56°F)		22°C
(72°F)		26°C
(79°F)		28°C
(82°F)		25°C
(77°F)		19°C
(67°F)		14°C
(57°F)		8°C
(47°F)		2°C
(37°F)
Average high-3°C
(26°F)		-4°C
(25°F)		0°C
(33°F)		6°C
(42°F)		13°C
(56°F)		20°C
(68°F)		21°C
(70°F)		19°C
(66°F)		13°C
(56°F)		7°C
(45°F)		2°C
(37°F)		-2°C
(29°F)
Daily mean-5°C
(23°F)		-6°C
(21°F)		-3°C
(27°F)		2°C
(36°F)		10°C
(50°F)		16°C
(61°F)		18°C
(64°F)		16°C
(61°F)		11°C
(51°F)		6°C
(42°F)		1°C
(34°F)		-4°C
(26°F)
Average low-8°C
(19°F)		-9°C
(17°F)		-6°C
(21°F)		-1°C
(30°F)		6°C
(43°F)		12°C
(54°F)		14°C
(58°F)		13°C
(56°F)		8°C
(47°F)		4°C
(39°F)		-0°C
(32°F)		-5°C
(23°F)
Mean minimum-22°C
(-7°F)		-19°C
(-3°F)		-17°C
(2°F)		-9°C
(16°F)		-1°C
(31°F)		7°C
(44°F)		9°C
(48°F)		9°C
(48°F)		2°C
(36°F)		-3°C
(27°F)		-8°C
(17°F)		-13°C
(10°F)
Minimum-27°C
(-16°F)		-26°C
(-15°F)		-24°C
(-10°F)		-11°C
(12°F)		-4°C
(25°F)		2°C
(36°F)		8°C
(46°F)		8°C
(46°F)		-0°C
(32°F)		-5°C
(23°F)		-12°C
(10°F)		-22°C
(-7°F)

Compare climate in Savonlinna with other places

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

Monthly average precipitation in Savonlinna, Finland

Savonlinna usually has the most precipitation in July, August and September, with an average of 13 rainy days and 78 mm (3.1 inches) of precipitation per month. The driest months in Savonlinna 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 Savonlinna. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)46 (1.8)47 (1.8)45 (1.8)43 (1.7)54 (2.1)60 (2.3)73 (2.9)88 (3.5)74 (2.9)73 (2.9)51 (2.0)70 (2.8)
Average precipitation days (≥ 1 mm)121112111011131513131315

Monthly sunshine hours in Savonlinna, Finland

The sunniest months in Savonlinna are May, June and July, when the sun shines an average of 15 hours 17 minutes a day. Least sunny months in Savonlinna: January, November and December receive an average of 1 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Savonlinna. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours331342463544374894803942711817824
Mean daily daylight hours6h 17m8h 54m11h 50m14h 50m17h 42m19h 28m18h 30m15h 48m12h 51m9h 53m7h 4m5h 21m

Solar UV radiation in Savonlinna, Finland

Savonlinna 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 Savonlinna UV Index data.

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