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Kajaani, Finland climate
Dfc Subarctic
Kajaani has a strongly seasonal cold-temperate climate (Subarctic, Köppen Dfc). The hottest month is July with an average daily high near 21°C, while the coldest is February averaging around −13°C at night. Around 455 mm of precipitation falls each year, peaking in July (59 mm) and easing off in April (22 mm). At latitude 65°N, day length swings from 3.0 hours in midwinter to 21.0 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsKajaani climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −4 | −5 | −1 | 6 | 12 | 18 | 21 | 19 | 13 | 6 | 0 | −3 |
| Avg temp (°C) | −8 | −9 | −5 | 2 | 8 | 14 | 17 | 15 | 9 | 3 | −2 | −6 |
| Avg low (°C) | −12 | −13 | −9 | −3 | 3 | 9 | 12 | 10 | 6 | 1 | −5 | −9 |
| Precipitation (mm) | 29 | 25 | 27 | 22 | 29 | 46 | 59 | 56 | 41 | 46 | 42 | 34 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −4 | −5 | −1 | 6 | 12 | 18 |
| Avg temp (°C) | −8 | −9 | −5 | 2 | 8 | 14 |
| Avg low (°C) | −12 | −13 | −9 | −3 | 3 | 9 |
| Precipitation (mm) | 29 | 25 | 27 | 22 | 29 | 46 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 21 | 19 | 13 | 6 | 0 | −3 |
| Avg temp (°C) | 17 | 15 | 9 | 3 | −2 | −6 |
| Avg low (°C) | 12 | 10 | 6 | 1 | −5 | −9 |
| Precipitation (mm) | 59 | 56 | 41 | 46 | 42 | 34 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 4 | 4 | 3 | 3 | 3 | 4 | 4 | 3 | 5 | 5 | 5 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | — | 0.0 | — | — | — | — | — |
| Days with low ≤ 0°C (days) | 21 | 19 | 20 | 15 | 5 | — | — | — | 3 | 10 | 17 | 21 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 5 | 4 | 4 | 3 | 3 | 3 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | — |
| Days with low ≤ 0°C (days) | 21 | 19 | 20 | 15 | 5 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 4 | 4 | 3 | 5 | 5 | 5 |
| Days with high ≥ 32°C (days) | 0.0 | — | — | — | — | — |
| Days with low ≤ 0°C (days) | — | — | 3 | 10 | 17 | 21 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 72 | 66 | 65 | 63 | 65 | 64 | 66 | 70 | 79 | 80 | 78 |
| Clear days (≤ 30% cloud) | 2 | 2 | 4 | 3 | 5 | 4 | 4 | 4 | 3 | 1 | 2 | 2 |
| Partly cloudy days (30–70%) | 9 | 9 | 12 | 12 | 12 | 12 | 12 | 12 | 9 | 8 | 6 | 7 |
| Cloudy days (≥ 70%) | 21 | 17 | 15 | 15 | 14 | 14 | 15 | 15 | 17 | 22 | 22 | 22 |
| Relative humidity (%) | 99 | 99 | 97 | 90 | 81 | 79 | 82 | 85 | 89 | 94 | 97 | 98 |
| Wind speed (km/h) | 6.5 | 6.7 | 6.0 | 4.2 | 3.2 | 2.8 | 2.7 | 3.3 | 3.9 | 4.2 | 5.1 | 5.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 72 | 66 | 65 | 63 | 65 |
| Clear days (≤ 30% cloud) | 2 | 2 | 4 | 3 | 5 | 4 |
| Partly cloudy days (30–70%) | 9 | 9 | 12 | 12 | 12 | 12 |
| Cloudy days (≥ 70%) | 21 | 17 | 15 | 15 | 14 | 14 |
| Relative humidity (%) | 99 | 99 | 97 | 90 | 81 | 79 |
| Wind speed (km/h) | 6.5 | 6.7 | 6.0 | 4.2 | 3.2 | 2.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 66 | 70 | 79 | 80 | 78 |
| Clear days (≤ 30% cloud) | 4 | 4 | 3 | 1 | 2 | 2 |
| Partly cloudy days (30–70%) | 12 | 12 | 9 | 8 | 6 | 7 |
| Cloudy days (≥ 70%) | 15 | 15 | 17 | 22 | 22 | 22 |
| Relative humidity (%) | 82 | 85 | 89 | 94 | 97 | 98 |
| Wind speed (km/h) | 2.7 | 3.3 | 3.9 | 4.2 | 5.1 | 5.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 22 years of daily observations at Oulunsalo Oulun Lentoasema, a weather station, about 138 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.