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Bielsko-Biala, Poland climate
Cfb Oceanic / temperate
Bielsko-Biala has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 24°C, while the coldest is January averaging around −4°C at night. Around 979 mm of precipitation falls each year, peaking in July (145 mm) and easing off in January (45 mm).
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)Bielsko-Biala climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 7 | 14 | 18 | 22 | 24 | 24 | 19 | 13 | 8 | 3 |
| Avg temp (°C) | −1 | 0 | 4 | 9 | 13 | 17 | 19 | 19 | 14 | 9 | 5 | 0 |
| Avg low (°C) | −4 | −3 | 0 | 4 | 8 | 12 | 13 | 13 | 9 | 5 | 1 | −3 |
| Precipitation (mm) | 45 | 46 | 57 | 67 | 120 | 124 | 145 | 91 | 113 | 70 | 56 | 46 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 7 | 14 | 18 | 22 |
| Avg temp (°C) | −1 | 0 | 4 | 9 | 13 | 17 |
| Avg low (°C) | −4 | −3 | 0 | 4 | 8 | 12 |
| Precipitation (mm) | 45 | 46 | 57 | 67 | 120 | 124 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 24 | 19 | 13 | 8 | 3 |
| Avg temp (°C) | 19 | 19 | 14 | 9 | 5 | 0 |
| Avg low (°C) | 13 | 13 | 9 | 5 | 1 | −3 |
| Precipitation (mm) | 145 | 91 | 113 | 70 | 56 | 46 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 74 | 71 | 67 | 69 | 69 | 65 | 61 | 66 | 70 | 74 | 73 |
| Relative humidity (%) | 93 | 91 | 84 | 78 | 75 | 72 | 68 | 66 | 73 | 82 | 90 | 93 |
| Wind speed (m/s) | 3.3 | 3.2 | 3.1 | 2.6 | 2.4 | 2.3 | 2.2 | 2.1 | 2.4 | 2.6 | 2.8 | 3.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 74 | 71 | 67 | 69 | 69 |
| Relative humidity (%) | 93 | 91 | 84 | 78 | 75 | 72 |
| Wind speed (m/s) | 3.3 | 3.2 | 3.1 | 2.6 | 2.4 | 2.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 61 | 66 | 70 | 74 | 73 |
| Relative humidity (%) | 68 | 66 | 73 | 82 | 90 | 93 |
| Wind speed (m/s) | 2.2 | 2.1 | 2.4 | 2.6 | 2.8 | 3.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Bielsko-biala, a weather station, about 4 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.