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Rovaniemi, Finland climate
Dfc Subarctic
Rovaniemi has a strongly seasonal subarctic climate (Subarctic, Köppen Dfc). The hottest month is July with an average daily high near 68°F, while the coldest is January averaging around 7°F at night. Around 25 inches of precipitation falls each year, peaking in July (3.1 inches) and easing off in April (1.4 inches). At latitude 67°N, day length swings from 0.6 hours in midwinter to 23.3 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 figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Rovaniemi climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 20 | 20 | 29 | 39 | 52 | 63 | 68 | 63 | 52 | 38 | 29 | 24 |
| Avg temp (°F) | 13 | 14 | 22 | 32 | 44 | 54 | 60 | 56 | 46 | 33 | 24 | 18 |
| Avg low (°F) | 7 | 8 | 15 | 25 | 36 | 46 | 52 | 48 | 40 | 29 | 19 | 12 |
| Precipitation (in) | 1.8 | 1.6 | 1.5 | 1.4 | 2.0 | 2.5 | 3.1 | 2.5 | 2.2 | 2.1 | 2.0 | 1.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 20 | 20 | 29 | 39 | 52 | 63 |
| Avg temp (°F) | 13 | 14 | 22 | 32 | 44 | 54 |
| Avg low (°F) | 7 | 8 | 15 | 25 | 36 | 46 |
| Precipitation (in) | 1.8 | 1.6 | 1.5 | 1.4 | 2.0 | 2.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 68 | 63 | 52 | 38 | 29 | 24 |
| Avg temp (°F) | 60 | 56 | 46 | 33 | 24 | 18 |
| Avg low (°F) | 52 | 48 | 40 | 29 | 19 | 12 |
| Precipitation (in) | 3.1 | 2.5 | 2.2 | 2.1 | 2.0 | 1.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 71 | 64 | 63 | 67 | 69 | 67 | 69 | 72 | 77 | 75 | 77 |
| Relative humidity (%) | 100 | 100 | 99 | 97 | 83 | 79 | 82 | 86 | 91 | 96 | 99 | 100 |
| Wind speed (mph) | 1.7 | 1.7 | 1.7 | 1.4 | 0.9 | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.9 | 1.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 71 | 64 | 63 | 67 | 69 |
| Relative humidity (%) | 100 | 100 | 99 | 97 | 83 | 79 |
| Wind speed (mph) | 1.7 | 1.7 | 1.7 | 1.4 | 0.9 | 0.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 69 | 72 | 77 | 75 | 77 |
| Relative humidity (%) | 82 | 86 | 91 | 96 | 99 | 100 |
| Wind speed (mph) | 0.4 | 0.4 | 0.4 | 0.4 | 0.9 | 1.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Rovaniemi, a weather station, about 10 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.