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Monthly climate in Iitti, Kymenlaakso, Finland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Iitti 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 731 mm (28.8 inches) and receives 144 rainy days on the 1 mm (0.04 inches) threshold annually.Iitti enjoys an average of 3059 hours of sunshine throughout the year, and daylight varies from 5 hours 42 minutes to 19 hours 2 minutes per day.

Monthly average temperatures in Iitti, Kymenlaakso, Finland §

The warmest months in Iitti 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, Iitti experiences 12 days above 25 °C (77.0 °F) and 131 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Iitti, Kymenlaakso, Finland.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 8°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)		 30°C
(87°F)		 23°C
(73°F)		 18°C
(64°F)		 11°C
(53°F)		 5°C
(42°F)
Mean maximum 4°C
(39°F)		 4°C
(40°F)		 9°C
(48°F)		 15°C
(60°F)		 24°C
(75°F)		 25°C
(78°F)		 28°C
(82°F)		 26°C
(78°F)		 20°C
(68°F)		 14°C
(58°F)		 9°C
(49°F)		 4°C
(39°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
(70°F)		 20°C
(67°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
(40°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)		 8°C
(46°F)		 2°C
(36°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)		 -12°C
(11°F)		 -2°C
(28°F)		 2°C
(36°F)		 8°C
(46°F)		 6°C
(44°F)		 -1°C
(31°F)		 -5°C
(23°F)		 -9°C
(16°F)		 -20°C
(-4°F)

Compare climate in Iitti with other places

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

Monthly average precipitation in Iitti, Kymenlaakso, Finland §

Iitti usually has the most precipitation in July, August and October, with an average of 13 rainy days and 80 mm (3.2 inches) of precipitation per month.The driest months in Iitti 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 Iitti, Kymenlaakso, Finland.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 49 (1.9) 47 (1.9) 44 (1.7) 46 (1.8) 54 (2.1) 60 (2.3) 78 (3.1) 86 (3.4) 62 (2.5) 77 (3.0) 53 (2.1) 73 (2.9)
Average precipitation days (≥ 1 mm) 11 11 10 11 10 11 12 14 12 15 12 15

Monthly sunshine hours in Iitti, Kymenlaakso, Finland §

The sunniest months in Iitti are May, June and July, when the sun shines an average of 14 hours 54 minutes a day.Least sunny months in Iitti: January, November and December receive an average of 1 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Iitti, Kymenlaakso, Finland.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 42 133 241 349 429 473 469 386 257 160 82 35
Mean daily daylight hours 6h 34m 9h 2m 11h 51m 14h 43m 17h 25m 19h 2m 18h 9m 15h 38m 12h 49m 9h 59m 7h 17m 5h 42m

Solar UV radiation in Iitti, Kymenlaakso, Finland §

Iitti 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 Iitti UV Index data.

Average daily maximum UV levels by month for Iitti, Kymenlaakso, Finland.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 1 1 3 4 5 6 7 5 3 2 1 1