Poznań
September
Weather in Poznań for September 2026
Your guide to Poznań weather in September - trends and predictions
In general, the average temperature in Poznań at the beginning of September is 26 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19 °C by the end of September.
The climate of Poznań in September is notably wet, with an average of 11 rainy days, and a total of 28.4 mm of precipitation.
Temperatures
Rain 🌧️
19
Dry days
11
Rainy days
0
Snow days
22°/13°
Temperatures
20 km/h
Avg max wind
59 %
Avg humidity
Poznań Weather September
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Temperatures trend during September in Poznań
See the weather trend as well as the moving average line
September weather in Poznań day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 24° /13° | 2.4 mm | 5 | |
| 2 Sept. | Overcast | 25° /14° | 0 mm | 5 | |
| 3 Sept. | Overcast | 27° /16° | 0 mm | 7 | |
| 4 Sept. |  Sunny | 27° /15° | 0 mm | 7 | |
| 5 Sept. | Sunny | 28° /17° | 0 mm | 7 | |
| 6 Sept. | Sunny | 24° /15° | 2.7 mm | 6 | |
| 7 Sept. | Sunny | 27° /14° | 0 mm | 7 | |
| 8 Sept. | Sunny | 28° /16° | 2.7 mm | 6 | |
| 9 Sept. |  Partly cloudy | 27° /15° | 0.2 mm | 7 | |
| 10 Sept. | Sunny | 25° /15° | 0.5 mm | 6 | |
| 11 Sept. | Sunny | 22° /14° | 4.8 mm | 5 | |
| 12 Sept. | Partly cloudy | 22° /14° | 1.3 mm | 5 | |
| 13 Sept. |  Thundery outbreaks possible | 20° /11° | 5.8 mm | 5 | |
| 14 Sept. | Partly cloudy | 18° /11° | 1.8 mm | 5 | |
| 15 Sept. | Sunny | 20° /12° | 1.1 mm | 5 | |
| 16 Sept. | Sunny | 23° /12° | 1.2 mm | 5 | |
| 17 Sept. | Overcast | 23° /13° | 0.2 mm | 6 | |
| 18 Sept. | Sunny | 24° /13° | 0 mm | 6 | |
| 19 Sept. |  Cloudy | 24° /15° | 0.1 mm | 5 | |
| 20 Sept. | Cloudy | 25° /13° | 0 mm | 6 | |
| 21 Sept. | Partly cloudy | 26° /14° | 0 mm | 6 | |
| 22 Sept. |  Light rain | 21° /12° | 0.5 mm | 5 | |
| 23 Sept. | Partly cloudy | 19° /11° | 1.1 mm | 5 | |
| 24 Sept. | Partly cloudy | 19° /9° | 1.1 mm | 5 | |
| 25 Sept. | Overcast | 19° /9° | 0.3 mm | 5 | |
| 26 Sept. | Sunny | 20° /11° | 0 mm | 5 | |
| 27 Sept. | Overcast | 22° /12° | 0 mm | 5 | |
| 28 Sept. | Partly cloudy | 20° /9° | 0.1 mm | 5 | |
| 29 Sept. |  Patchy rain possible | 18° /10° | 0.1 mm | 4 | |
| 30 Sept. | Patchy rain possible | 15° /9° | 0.4 mm | 4 | |
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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.
Change Month
Poznań in September - FAQ
What are the expected maximum and minimum temperatures in Poznań during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. 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 28.4 mm across approximately 11 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 💧
Typically, Poznań has 11 rainy days in September with a total of 28.4 mm of rainfall.
UV exposure in Poznań during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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