Sosnowiec climate
Sosnowiec (Poland) has a warm-summer humid continental climate (Köppen Dfb). The average temperature over the year is 9 °C48 °F, and about 714 mm28 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Sosnowiec climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 031 | −620 | −326 | 471.9 | 27 |
| Feb | 235 | −523 | −229 | 411.6 | 24 |
| Mar | 745 | −229 | 337 | 461.8 | 21 |
| Apr | 1457 | 338 | 948 | 471.9 | 6 |
| May | 1966 | 948 | 1457 | 873.4 | 0 |
| Jun | 2373 | 1355 | 1864 | 823.2 | 0 |
| Jul | 2578 | 1559 | 2068 | 873.4 | 0 |
| Aug | 2678 | 1458 | 2068 | 692.7 | 0 |
| Sep | 2068 | 949 | 1558 | 662.6 | 0 |
| Oct | 1356 | 440 | 948 | 532.1 | 5 |
| Nov | 745 | 133 | 439 | 461.8 | 12 |
| Dec | 134 | −425 | −130 | 431.7 | 25 |
| Year | 2678 | −620 | 948 | 71428 | 121 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 94% | 81% | 0.8 | 8:29 |
| Feb | 91% | 80% | 1.6 | 9:59 |
| Mar | 85% | 69% | 2.8 | 11:43 |
| Apr | 76% | 63% | 4.1 | 13:43 |
| May | 74% | 66% | 5.0 | 15:26 |
| Jun | 71% | 68% | 5.3 | 16:23 |
| Jul | 67% | 64% | 5.2 | 15:59 |
| Aug | 65% | 59% | 4.6 | 14:29 |
| Sep | 71% | 63% | 3.3 | 12:32 |
| Oct | 82% | 69% | 2.0 | 10:37 |
| Nov | 90% | 78% | 1.0 | 8:54 |
| Dec | 93% | 80% | 0.6 | 8:03 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Sosnowiec is like
The warmest month is July, with an average high of 25 °C78 °F and a low of 15 °C59 °F. The coldest is January, when highs average 0 °C31 °F and lows −6 °C20 °F. Seasons are strongly marked: the warmest month is on average 23.7 °C42.6 °F warmer than the coldest.
Annual precipitation is moderate at about 714 mm28 in. The wettest three-month stretch is May–July, which brings 36% of the annual total. The wettest month is July (87 mm3.4 in), the driest is February (41 mm1.6 in).
Relative humidity ranges from 65% in August to 94% in January. The clearest skies (lowest average cloud amount, 59%) are typical of August. Average wind speed near the ground ranges from 8 km/h (5 mph) in August to 13 km/h (8 mph) in January. Daylight lasts from about 8.0 hours in December to 16.4 hours in June.
A lasting snow cover is typical in December–March, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 18 cm).
Best time to visit Sosnowiec
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–September: average highs of 20 °C68 °F to 26 °C78 °F with 66 mm2.6 in to 87 mm3.4 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 0 °C31 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Sosnowiec
- Winter (December–February) — highs 031 to 2 °C35 °F, lows −620 to −4 °C25 °F, about 44 mm1.7 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots and shoes with good grip, as frost is common.
- Spring (March–May) — highs 745 to 19 °C66 °F, lows −229 to 9 °C48 °F, about 60 mm2.4 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
- Summer (June–August) — highs 2373 to 26 °C78 °F, lows 1355 to 15 °C59 °F, about 79 mm3.1 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs 745 to 20 °C68 °F, lows 133 to 9 °C49 °F, about 55 mm2.2 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
How Sosnowiec compares
Compared with Katowice, about 7 km to the southwest, Sosnowiec has practically the same average temperature and receives a similar amount of precipitation.
Of the 36 places in Poland covered by World Climates, Sosnowiec is the 17th warmest by annual mean temperature and the 9th wettest by annual precipitation. See all of them on the Poland climate page.
Places in other countries with the most similar temperature and rainfall pattern: Ostrava (Czechia, Dfb), Lviv (Ukraine, Dfb) and Ivano-Frankivsk (Ukraine, Dfb).
The same NASA POWER grid cell also contains Dąbrowa Górnicza (pop. 116,971). Their long-term averages in this dataset are essentially the same as for Sosnowiec, so they do not have separate pages.
Nearby places
- Katowice 7 km · 9 °C48 °F · 716 mm28 in
- Gliwice 30 km · 9 °C49 °F · 716 mm28 in
- Rybnik 45 km · 9 °C48 °F · 796 mm31 in
- Bielsko-Biala 52 km · 8 °C47 °F · 796 mm31 in
- Częstochowa 57 km · 9 °C48 °F · 654 mm26 in
- Kraków 64 km · 9 °C49 °F · 786 mm31 in
- Ostrava 77 km · 9 °C49 °F · 704 mm28 in
- Opole 94 km · 9 °C49 °F · 670 mm26 in
Frequently asked questions
What is the warmest month in Sosnowiec?
July is the warmest month in Sosnowiec, with an average high of 25 °C (78 °F) and an average low of 15 °C (59 °F).
What is the coldest month in Sosnowiec?
January is the coldest month, with an average high of 0 °C (31 °F) and an average low of -6 °C (20 °F).
When does it rain the most in Sosnowiec?
July is the wettest month with about 87 mm (3.4 in) of precipitation; February is the driest with about 41 mm (1.6 in).
What is the best time to visit Sosnowiec?
Judging by long-term averages, the most comfortable months are June–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.