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Monthly climate in Oulu, Finland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Oulu features a subarctic climate (Dfc).Temperatures typically range between -8 °C (17 °F) and 17 °C (63 °F) through the year, but rarely can drop to -32 °C (-25 °F) or can rise to as high as 32 °C (90 °F).The average annual precipitation amounts to about 704 mm (27.7 inches) and receives 134 rainy days on the 1 mm (0.04 inches) threshold annually.Oulu enjoys an average of 3200 hours of sunshine throughout the year, and daylight varies from 3 hours 52 minutes to 21 hours 30 minutes per day.

Monthly average temperatures in Oulu, Finland §

The warmest months in Oulu are June, July and August, with daily mean temperatures ranging from 14 to 17 °C (58 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (17 - 24 °F) throughout the day. On average each year, Oulu experiences 8 days above 25 °C (77.0 °F) and 167 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Oulu, 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 5°C
(41°F)		 5°C
(42°F)		 7°C
(45°F)		 14°C
(57°F)		 27°C
(80°F)		 29°C
(85°F)		 32°C
(90°F)		 31°C
(88°F)		 24°C
(75°F)		 18°C
(64°F)		 9°C
(49°F)		 4°C
(40°F)
Mean maximum 3°C
(37°F)		 3°C
(38°F)		 6°C
(43°F)		 11°C
(52°F)		 22°C
(72°F)		 25°C
(77°F)		 28°C
(82°F)		 26°C
(79°F)		 19°C
(67°F)		 13°C
(56°F)		 7°C
(46°F)		 3°C
(38°F)
Average high -5°C
(23°F)		 -5°C
(23°F)		 -1°C
(31°F)		 4°C
(40°F)		 11°C
(52°F)		 18°C
(65°F)		 21°C
(70°F)		 18°C
(65°F)		 13°C
(55°F)		 6°C
(43°F)		 1°C
(34°F)		 -3°C
(28°F)
Daily mean -7°C
(19°F)		 -8°C
(17°F)		 -4°C
(25°F)		 1°C
(34°F)		 7°C
(45°F)		 14°C
(58°F)		 17°C
(63°F)		 14°C
(58°F)		 10°C
(49°F)		 4°C
(40°F)		 -1°C
(31°F)		 -5°C
(24°F)
Average low -10°C
(14°F)		 -11°C
(12°F)		 -8°C
(18°F)		 -3°C
(27°F)		 2°C
(37°F)		 9°C
(49°F)		 12°C
(54°F)		 10°C
(51°F)		 6°C
(44°F)		 2°C
(36°F)		 -3°C
(27°F)		 -7°C
(20°F)
Mean minimum -26°C
(-15°F)		 -23°C
(-8°F)		 -21°C
(-5°F)		 -11°C
(13°F)		 -4°C
(24°F)		 5°C
(41°F)		 6°C
(43°F)		 4°C
(39°F)		 -1°C
(31°F)		 -9°C
(16°F)		 -14°C
(8°F)		 -19°C
(-2°F)
Minimum -32°C
(-25°F)		 -25°C
(-14°F)		 -26°C
(-15°F)		 -13°C
(9°F)		 -6°C
(21°F)		 1°C
(34°F)		 4°C
(39°F)		 1°C
(34°F)		 -4°C
(24°F)		 -12°C
(10°F)		 -18°C
(0°F)		 -24°C
(-12°F)

Compare climate in Oulu with other places

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

Monthly average precipitation in Oulu, Finland §

Oulu usually has the most precipitation in July, August and October, with an average of 13 rainy days and 82 mm (3.2 inches) of precipitation per month.The driest months in Oulu are January, February and April. On average, 39 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Oulu, 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) 40 (1.6) 40 (1.6) 41 (1.6) 38 (1.5) 49 (1.9) 60 (2.4) 73 (2.9) 91 (3.6) 71 (2.8) 81 (3.2) 62 (2.4) 58 (2.3)
Average precipitation days (≥ 1 mm) 10 9 11 7 8 9 11 14 13 15 13 14

Monthly sunshine hours in Oulu, Finland §

The sunniest months in Oulu are May, June and July, when the sun shines an average of 16 hours 4 minutes a day.Least sunny months in Oulu: January, November and December receive an average of 1 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Oulu, 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 33 132 269 364 453 515 509 407 279 147 67 20
Mean daily daylight hours 5h 10m 8h 24m 11h 49m 15h 16m 18h 49m 21h 30m 19h 56m 16h 24m 12h 58m 9h 34m 6h 11m 3h 52m

Solar UV radiation in Oulu, Finland §

Oulu experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 4 - 6, 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 Oulu UV Index data.

Average daily maximum UV levels by month for Oulu, 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 2 3 4 6 6 4 3 2 1 1