Poznań climate
Poznań (Poland) has a warm-summer humid continental climate (Köppen Dfb). The average temperature over the year is 9 °C49 °F, and about 598 mm24 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Poznań climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 033 | −523 | −228 | 491.9 | 24 |
| Feb | 337 | −425 | −131 | 371.4 | 23 |
| Mar | 846 | −130 | 338 | 411.6 | 18 |
| Apr | 1558 | 338 | 948 | 311.2 | 5 |
| May | 2067 | 948 | 1458 | 572.3 | 0 |
| Jun | 2374 | 1355 | 1864 | 612.4 | 0 |
| Jul | 2578 | 1559 | 2069 | 773.0 | 0 |
| Aug | 2577 | 1558 | 2068 | 622.4 | 0 |
| Sep | 2068 | 1050 | 1559 | 461.8 | 0 |
| Oct | 1356 | 541 | 948 | 461.8 | 3 |
| Nov | 745 | 134 | 439 | 431.7 | 10 |
| Dec | 236 | −228 | 032 | 461.8 | 21 |
| Year | 2578 | −523 | 949 | 59824 | 105 |
“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 | 93% | 81% | 0.7 | 8:11 |
| Feb | 89% | 78% | 1.4 | 9:49 |
| Mar | 82% | 69% | 2.6 | 11:42 |
| Apr | 73% | 59% | 4.2 | 13:51 |
| May | 71% | 63% | 5.1 | 15:43 |
| Jun | 68% | 64% | 5.4 | 16:47 |
| Jul | 67% | 66% | 5.1 | 16:20 |
| Aug | 66% | 63% | 4.4 | 14:40 |
| Sep | 71% | 62% | 3.2 | 12:34 |
| Oct | 81% | 69% | 1.8 | 10:30 |
| Nov | 91% | 80% | 0.8 | 8:39 |
| Dec | 93% | 81% | 0.5 | 7:42 |
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 Poznań 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 °C33 °F and lows −5 °C23 °F. Seasons are strongly marked: the warmest month is on average 22.5 °C40.5 °F warmer than the coldest.
Annual precipitation is moderate at about 598 mm24 in. The wettest three-month stretch is June–August, which brings 33% of the annual total. The wettest month is July (77 mm3.0 in), the driest is April (31 mm1.2 in).
Relative humidity ranges from 66% in August to 93% in December. The clearest skies (lowest average cloud amount, 59%) are typical of April. Average wind speed near the ground ranges from 9 km/h (6 mph) in August to 13 km/h (8 mph) in January. Daylight lasts from about 7.7 hours in December to 16.8 hours in June.
A lasting snow cover is typical in December–February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 15 cm).
Best time to visit Poznań
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–September: average highs of 20 °C67 °F to 25 °C78 °F with 46 mm1.8 in to 77 mm3.0 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 0 °C33 °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 Poznań
- Winter (December–February) — highs 033 to 3 °C37 °F, lows −523 to −2 °C28 °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 846 to 20 °C67 °F, lows −130 to 9 °C48 °F, about 43 mm1.7 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 2374 to 25 °C78 °F, lows 1355 to 15 °C59 °F, about 67 mm2.6 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 134 to 10 °C50 °F, about 45 mm1.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
How Poznań compares
Compared with Wrocław, about 145 km to the south, Poznań is on average 0.5 °C1 °F cooler and receives 5% less precipitation (598 mm24 in vs 632 mm25 in). The difference is largest in June (0.8 °C1.5 °F cooler).
Of the 36 places in Poland covered by World Climates, Poznań is the 7th warmest by annual mean temperature and the 34th 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: Berlin (Germany, Dfb), Ostrava (Czechia, Dfb) and Leipzig (Germany, Dfb).
Nearby places
- Kalisz 107 km · 9 °C48 °F · 587 mm23 in
- Bydgoszcz 108 km · 9 °C48 °F · 618 mm24 in
- Zielona Góra 110 km · 9 °C49 °F · 597 mm23 in
- Gorzów Wielkopolski 121 km · 10 °C49 °F · 609 mm24 in
- Toruń 131 km · 9 °C48 °F · 623 mm25 in
- Legnica 143 km · 10 °C49 °F · 683 mm27 in
- Wrocław 145 km · 10 °C50 °F · 632 mm25 in
- Włocławek 147 km · 9 °C48 °F · 610 mm24 in
Frequently asked questions
What is the warmest month in Poznań?
July is the warmest month in Poznań, with an average high of 25 °C (78 °F) and an average low of 15 °C (59 °F).
What is the coldest month in Poznań?
January is the coldest month, with an average high of 0 °C (33 °F) and an average low of -5 °C (23 °F).
When does it rain the most in Poznań?
July is the wettest month with about 77 mm (3.0 in) of precipitation; April is the driest with about 31 mm (1.2 in).
What is the best time to visit Poznań?
Judging by long-term averages, the most comfortable months are May–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.