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Ostrowiec Świętokrzyski, Poland climate
Cfb Oceanic / temperate
Ostrowiec Świętokrzyski has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 25°C, while the coldest is January averaging around −5°C at night. Around 645 mm of precipitation falls each year, peaking in July (92 mm) and easing off in February (36 mm). At latitude 51°N, day length swings from 7.7 hours in midwinter to 16.3 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)Ostrowiec Świętokrzyski climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 1 | 3 | 7 | 14 | 19 | 23 | 25 | 25 | 19 | 13 | 7 | 2 |
| Avg temp (°C) | −2 | −1 | 3 | 8 | 13 | 17 | 19 | 18 | 13 | 8 | 3 | −1 |
| Avg low (°C) | −5 | −5 | −2 | 2 | 7 | 11 | 13 | 12 | 8 | 4 | 0 | −4 |
| Precipitation (mm) | 39 | 36 | 43 | 41 | 72 | 69 | 92 | 70 | 57 | 47 | 40 | 39 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 1 | 3 | 7 | 14 | 19 | 23 |
| Avg temp (°C) | −2 | −1 | 3 | 8 | 13 | 17 |
| Avg low (°C) | −5 | −5 | −2 | 2 | 7 | 11 |
| Precipitation (mm) | 39 | 36 | 43 | 41 | 72 | 69 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 19 | 13 | 7 | 2 |
| Avg temp (°C) | 19 | 18 | 13 | 8 | 3 | −1 |
| Avg low (°C) | 13 | 12 | 8 | 4 | 0 | −4 |
| Precipitation (mm) | 92 | 70 | 57 | 47 | 40 | 39 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 76 | 69 | 66 | 66 | 66 | 65 | 60 | 63 | 69 | 75 | 74 |
| Relative humidity (%) | 93 | 91 | 84 | 76 | 73 | 70 | 67 | 65 | 72 | 82 | 91 | 93 |
| Wind speed (km/h) | 12.9 | 12.7 | 12.5 | 10.4 | 9.5 | 9.2 | 8.9 | 8.6 | 9.7 | 10.4 | 11.0 | 12.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 76 | 69 | 66 | 66 | 66 |
| Relative humidity (%) | 93 | 91 | 84 | 76 | 73 | 70 |
| Wind speed (km/h) | 12.9 | 12.7 | 12.5 | 10.4 | 9.5 | 9.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 60 | 63 | 69 | 75 | 74 |
| Relative humidity (%) | 67 | 65 | 72 | 82 | 91 | 93 |
| Wind speed (km/h) | 8.9 | 8.6 | 9.7 | 10.4 | 11.0 | 12.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Kielce-sukow, a weather station, about 50 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.