Home › Cities › Finland › Kouvola
Kouvola, Finland climate
Dfb Warm-summer humid continental
Kouvola has a seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 21°C, while the coldest is February averaging around −8°C at night. Precipitation is fairly even year-round, totalling about 405 mm. At latitude 60°N, day length swings from 5.4 hours in midwinter to 18.6 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)Kouvola climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −2 | −3 | 1 | 6 | 12 | 17 | 21 | 20 | 15 | 9 | 4 | 1 |
| Avg temp (°C) | −4 | −5 | −2 | 3 | 9 | 14 | 18 | 17 | 13 | 7 | 2 | −1 |
| Avg low (°C) | −6 | −8 | −5 | 0 | 6 | 11 | 15 | 14 | 10 | 5 | 1 | −3 |
| Precipitation (mm) | 29 | 28 | 22 | 27 | 25 | 38 | 34 | 35 | 38 | 43 | 42 | 43 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −2 | −3 | 1 | 6 | 12 | 17 |
| Avg temp (°C) | −4 | −5 | −2 | 3 | 9 | 14 |
| Avg low (°C) | −6 | −8 | −5 | 0 | 6 | 11 |
| Precipitation (mm) | 29 | 28 | 22 | 27 | 25 | 38 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 21 | 20 | 15 | 9 | 4 | 1 |
| Avg temp (°C) | 18 | 17 | 13 | 7 | 2 | −1 |
| Avg low (°C) | 15 | 14 | 10 | 5 | 1 | −3 |
| Precipitation (mm) | 34 | 35 | 38 | 43 | 42 | 43 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 73 | 67 | 67 | 61 | 64 | 61 | 63 | 67 | 78 | 80 | 80 |
| Relative humidity (%) | 96 | 97 | 93 | 85 | 79 | 79 | 80 | 81 | 84 | 89 | 93 | 95 |
| Wind speed (km/h) | 8.4 | 7.4 | 6.6 | 5.4 | 4.8 | 4.8 | 5.2 | 6.2 | 7.5 | 8.2 | 8.9 | 9.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 73 | 67 | 67 | 61 | 64 |
| Relative humidity (%) | 96 | 97 | 93 | 85 | 79 | 79 |
| Wind speed (km/h) | 8.4 | 7.4 | 6.6 | 5.4 | 4.8 | 4.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 63 | 67 | 78 | 80 | 80 |
| Relative humidity (%) | 80 | 81 | 84 | 89 | 93 | 95 |
| Wind speed (km/h) | 5.2 | 6.2 | 7.5 | 8.2 | 8.9 | 9.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Kotka Rankki, a weather station, about 56 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.