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Koszalin, Poland climate
Cfb Oceanic / temperate
Koszalin has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is August with an average daily high near 72°F, while the coldest is January averaging around 28°F at night. Around 30 inches of precipitation falls each year, peaking in August (3.6 inches) and easing off in April (1.4 inches). At latitude 54°N, day length swings from 7.1 hours in midwinter to 16.9 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)Koszalin climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 36 | 38 | 44 | 55 | 63 | 68 | 72 | 72 | 65 | 55 | 45 | 38 |
| Avg temp (°F) | 32 | 34 | 38 | 47 | 54 | 60 | 64 | 64 | 57 | 49 | 41 | 35 |
| Avg low (°F) | 28 | 29 | 32 | 38 | 45 | 52 | 56 | 56 | 50 | 43 | 36 | 31 |
| Precipitation (in) | 2.2 | 1.6 | 1.9 | 1.4 | 2.1 | 3.0 | 3.6 | 3.6 | 3.0 | 2.8 | 2.3 | 2.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 36 | 38 | 44 | 55 | 63 | 68 |
| Avg temp (°F) | 32 | 34 | 38 | 47 | 54 | 60 |
| Avg low (°F) | 28 | 29 | 32 | 38 | 45 | 52 |
| Precipitation (in) | 2.2 | 1.6 | 1.9 | 1.4 | 2.1 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 72 | 72 | 65 | 55 | 45 | 38 |
| Avg temp (°F) | 64 | 64 | 57 | 49 | 41 | 35 |
| Avg low (°F) | 56 | 56 | 50 | 43 | 36 | 31 |
| Precipitation (in) | 3.6 | 3.6 | 3.0 | 2.8 | 2.3 | 2.3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 79 | 75 | 66 | 62 | 64 | 64 | 65 | 66 | 72 | 79 | 79 |
| Relative humidity (%) | 94 | 92 | 87 | 80 | 76 | 75 | 75 | 74 | 78 | 85 | 92 | 94 |
| Wind speed (mph) | 9.4 | 9.1 | 8.4 | 7.4 | 6.7 | 6.8 | 6.6 | 6.4 | 7.2 | 7.9 | 8.2 | 8.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 79 | 75 | 66 | 62 | 64 |
| Relative humidity (%) | 94 | 92 | 87 | 80 | 76 | 75 |
| Wind speed (mph) | 9.4 | 9.1 | 8.4 | 7.4 | 6.7 | 6.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 65 | 66 | 72 | 79 | 79 |
| Relative humidity (%) | 75 | 74 | 78 | 85 | 92 | 94 |
| Wind speed (mph) | 6.6 | 6.4 | 7.2 | 7.9 | 8.2 | 8.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Koszalin, a weather station, about 2 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.