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Monthly climate in Lappeenranta, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Lappeenranta features a humid continental climate (Dfb). Temperatures typically range between -5 °C (23 °F) and 18 °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 726 mm (28.6 inches) and receives 149 rainy days on the 1 mm (0.04 inches) threshold annually. Lappeenranta enjoys an average of 3100 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 Lappeenranta, Finland

The warmest months in Lappeenranta 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 -5 to -3 °C (23 - 27 °F) throughout the day. On average each year, Lappeenranta experiences 13 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 Lappeenranta. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		6°C
(43°F)		11°C
(51°F)		20°C
(68°F)		28°C
(83°F)		31°C
(89°F)		32°C
(89°F)		30°C
(86°F)		23°C
(73°F)		18°C
(64°F)		11°C
(52°F)		5°C
(42°F)
Mean maximum3°C
(38°F)		4°C
(39°F)		8°C
(46°F)		14°C
(58°F)		23°C
(73°F)		26°C
(78°F)		28°C
(84°F)		25°C
(78°F)		20°C
(68°F)		15°C
(59°F)		9°C
(49°F)		3°C
(38°F)
Average high-2°C
(28°F)		-3°C
(27°F)		1°C
(35°F)		7°C
(45°F)		14°C
(57°F)		20°C
(69°F)		22°C
(71°F)		20°C
(68°F)		14°C
(58°F)		8°C
(47°F)		4°C
(39°F)		-1°C
(30°F)
Daily mean-4°C
(24°F)		-5°C
(23°F)		-2°C
(29°F)		3°C
(38°F)		10°C
(50°F)		16°C
(62°F)		18°C
(64°F)		16°C
(61°F)		11°C
(53°F)		6°C
(44°F)		2°C
(36°F)		-3°C
(27°F)
Average low-7°C
(20°F)		-8°C
(18°F)		-5°C
(22°F)		-1°C
(31°F)		5°C
(41°F)		11°C
(53°F)		14°C
(57°F)		13°C
(55°F)		8°C
(47°F)		4°C
(40°F)		0°C
(33°F)		-4°C
(25°F)
Mean minimum-20°C
(-4°F)		-19°C
(-2°F)		-17°C
(2°F)		-9°C
(16°F)		-2°C
(29°F)		5°C
(42°F)		9°C
(48°F)		8°C
(47°F)		2°C
(37°F)		-3°C
(28°F)		-6°C
(21°F)		-11°C
(13°F)
Minimum-25°C
(-12°F)		-28°C
(-18°F)		-24°C
(-12°F)		-14°C
(6°F)		-4°C
(26°F)		2°C
(36°F)		7°C
(46°F)		7°C
(45°F)		0°C
(32°F)		-4°C
(25°F)		-8°C
(17°F)		-20°C
(-4°F)

Compare climate in Lappeenranta with other places

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

Monthly average precipitation in Lappeenranta, Finland

Lappeenranta usually has the most precipitation in July, August and October, with an average of 14 rainy days and 79 mm (3.1 inches) of precipitation per month. The driest months in Lappeenranta are January, March and April. On average, 47 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lappeenranta. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)48 (1.9)54 (2.1)48 (1.9)44 (1.7)51 (2.0)52 (2.1)74 (2.9)88 (3.4)67 (2.6)76 (3.0)50 (2.0)74 (2.9)
Average precipitation days (≥ 1 mm)111113121010131513141116

Monthly sunshine hours in Lappeenranta, Finland

The sunniest months in Lappeenranta are May, June and July, when the sun shines an average of 15 hours 7 minutes a day. Least sunny months in Lappeenranta: January, November and December receive an average of 1 hours 30 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lappeenranta. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours301272453544364794763902701828323
Mean daily daylight hours6h 31m9h 0m11h 51m14h 44m17h 28m19h 6m18h 13m15h 40m12h 49m9h 58m7h 15m5h 39m

Solar UV radiation in Lappeenranta, Finland

Lappeenranta 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 Lappeenranta UV Index data.

Average daily maximum UV levels by month for Lappeenranta. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113457753211