Poznań
September
Weather in Poznań for September 2025
Your guide to Poznań weather in September - trends and predictions
In general, the average temperature in Poznań at the beginning of September is 26.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21 °C by the end of September.
Poznań experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 22.4 mm.
Temperatures
Rain 🌧️
24
Dry days
6
Rainy days
0
Snow days
23°/14°
Temperatures
20 km/h
Avg max wind
56 %
Avg humidity
Poznań in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2 25° | 3 28° | 4  26° | 5  28° | 6 28° | 7 29° |
| 8 30° | 9  27° | 10 25° | 11 24° | 12 22° | 13  18° | 14 19° |
| 15 19° | 16 25° | 17 26° | 18 27° | 19 23° | 20 23° | 21 25° |
| 22  23° | 23 20° | 24 21° | 25 21° | 26 22° | 27 24° | 28 22° |
| 29 20° | 30  17° |
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Temperatures trend during September in Poznań
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Overcast | 23° /11° | 3.5 mm | 5 | |
| 2 Sept. | Overcast | 25° /13° | 0 mm | 6 | |
| 3 Sept. | Overcast | 28° /16° | 0 mm | 7 | |
| 4 Sept. | Cloudy | 26° /15° | 0 mm | 7 | |
| 5 Sept. | Sunny | 28° /17° | 0 mm | 8 | |
| 6 Sept. | Sunny | 28° /16° | 0 mm | 8 | |
| 7 Sept. | Sunny | 29° /16° | 0 mm | 8 | |
| 8 Sept. | Sunny | 30° /18° | 0.2 mm | 7 | |
| 9 Sept. | Partly cloudy | 27° /16° | 0.3 mm | 7 | |
| 10 Sept. | Sunny | 25° /15° | 0.6 mm | 6 | |
| 11 Sept. | Sunny | 24° /14° | 0 mm | 6 | |
| 12 Sept. | Partly cloudy | 22° /14° | 1.4 mm | 5 | |
| 13 Sept. | Thundery outbreaks possible | 18° /11° | 8.4 mm | 5 | |
| 14 Sept. | Partly cloudy | 19° /11° | 0.4 mm | 5 | |
| 15 Sept. | Sunny | 19° /12° | 0.8 mm | 5 | |
| 16 Sept. | Sunny | 25° /13° | 1.7 mm | 6 | |
| 17 Sept. | Overcast | 26° /14° | 0 mm | 7 | |
| 18 Sept. | Sunny | 27° /15° | 0 mm | 7 | |
| 19 Sept. | Cloudy | 23° /14° | 0.2 mm | 5 | |
| 20 Sept. | Cloudy | 23° /12° | 0 mm | 6 | |
| 21 Sept. | Partly cloudy | 25° /13° | 0 mm | 7 | |
| 22 Sept. | Light rain | 23° /13° | 0.5 mm | 6 | |
| 23 Sept. | Partly cloudy | 20° /12° | 1.7 mm | 6 | |
| 24 Sept. | Partly cloudy | 21° /11° | 1.6 mm | 5 | |
| 25 Sept. | Overcast | 21° /11° | 0.5 mm | 5 | |
| 26 Sept. | Sunny | 22° /13° | 0 mm | 6 | |
| 27 Sept. | Overcast | 24° /15° | 0.1 mm | 6 | |
| 28 Sept. | Partly cloudy | 22° /11° | 0.2 mm | 6 | |
| 29 Sept. | Partly cloudy | 20° /10° | 0 mm | 5 | |
| 30 Sept. | Patchy rain possible | 17° /10° | 0.3 mm | 5 | |
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Important Notice
Our weather forecast for Poznań in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Poznań forecast closer to your planned date for the most up-to-date weather information.
Poznań in September - FAQ
What are the expected maximum and minimum temperatures in Poznań during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Poznań during September?
In September, Poznań can expect light to moderate rainfall, totaling 22.4 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Poznań during September?
The average wind speed in Poznań during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Poznań
Explore the daily rainfall trends and prepare for Poznańs September weather 💧
UV exposure in Poznań during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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