Weather in Poznan in August 2025
- August is usually the hottest month of the year in Poznan;
Average weather
Average temperature in Poznan in August
Going from a maximum of +91°F during the day to a minimum of +50°F during the night, the temperature in August averages around +75°F.
The average maximum temperature goes down 13% by the end of the month, compared with the beginning of the month, from +70°F to +64°F.
Is Poznan warm or cold in August?
Poznan is typically warm in August.
Maximum temperatures go up compared to the previous month from +75°F to +75°F. The minimum temperature also goes up from +57°F to +57°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is the hottest month in Poznan, here is the comparison with other months:
Climate in Poznan in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +75°F | +75°F | +66°F | ||||
| Min. temperature | ||||||
| +43°F | +41°F | +34°F | ||||
| Max. temperature | ||||||
| +99°F | +99°F | +93°F | ||||
| Rainfall | ||||||
| 81 mm | 67 mm | 47 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 68% | 70% | 76% | ||||
| Air pressure | ||||||
| 1013 HPa | 1014 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 9 | 9 | 9 | ||||
| Cloudy days | ||||||
| 3 | 4 | 6 | ||||
| Rainy days | ||||||
| 14 | 15 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. The temperature levels stay the same in the area of +75°F for average maximum temperature during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 81 mm to 67 mm. Humidity rises from 68% to 70%. The average wind speed doesn’t change much during August, staying around 2 m/s. The amount of sunny days stay about the same, averaging 9 sunny days during the month.
September brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Poznan is gradually decreasing during August, going from 4 m/s to 3 m/s over the course of the month.
Rain
How was the weather last August in Poznan?
Climate Change Over the Years
The climate in Poznan in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1980 (+50°F) and the highest in 2019 (+60°F). The driest year was 2003 with only 280 mm of rainfall, and the wettest year was 2023 with 907 mm.
FAQ
Is August a good time to visit Poznan?
Can you sunbathe in Poznan in August?
Is Poznan rainy in August?
Is it sunny in Poznan in August?
Other cities in Poland
Monthly weather in Poznan
Source of the data
For this page, we’ve looked at the typical weather in Poznan, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.