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.
With an average of 4 rainy days, Poznań experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.
Is September a good time to visit Poznań? check out the best time to travel to Poznań page.
- New! Chat with our AI weatherman - it’s amazing and free.
26
Dry days
4
Rainy days
0
Snow days
26°/14°
Temperatures
17 km/h
Avg max wind
56 %
Avg humidity
Poznań in September average weather
Move between months or click on a day
| 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° |
You can click on date
Access Poznań weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Poznań
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| 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 | |
| Next | |||||
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 26° 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?
Expect minimal rainfall in Poznań during September, with a total of 12.5 mm over approximately 4 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Poznań during September?
The average wind speed in Poznań during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Poznań in September?
As you prepare for your trip to Poznań in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Poznań, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
Quick links
You are here
Where is Poznań?Get accurate weather forecasts for Poznań, located at latitude 52.407 and longitude 16.93. Stay updated with localized weather information tailored for Poznań.
Found a mistake?
We appreciate your attention to details. Tell us here.