Greater Poland (Poznań)
September
Weather in Greater Poland for September 2027
Your guide to Greater Poland weather in September - trends and predictions
In general, the average temperature in Greater Poland at the beginning of September is 24.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19 °C by the end of September.
Greater Poland experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 32.5 mm.
Is September a good time to visit Greater Poland? check out the best time to travel to Greater Poland page.
Temperatures
Rain 🌧️
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24
Dry days
6
Rainy days
0
Snow days
22°/13°
Temperatures
20 km/h
Avg max wind
61 %
Avg humidity
Greater Poland Weather September
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Temperatures trend during September in Greater Poland
See the weather trend as well as the moving average line
September weather in Greater Poland day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 23° /14° | 1.9 mm | 5 | |
| 2 Sept. |  Overcast | 24° /14° | 0 mm | 5 | |
| 3 Sept. | Overcast | 25° /16° | 0.1 mm | 5 | |
| 4 Sept. | Patchy rain possible | 26° /16° | 2.3 mm | 5 | |
| 5 Sept. | Patchy rain possible | 26° /16° | 1.1 mm | 5.1 | |
| 6 Sept. | Patchy rain possible | 22° /14° | 2 mm | 5 | |
| 7 Sept. |  Sunny | 25° /14° | 0 mm | 4.9 | |
| 8 Sept. | Patchy rain possible | 28° /16° | 2 mm | 4.9 | |
| 9 Sept. |  Partly cloudy | 26° /16° | 0.4 mm | 4.8 | |
| 10 Sept. | Sunny | 23° /14° | 0.4 mm | 4.7 | |
| 11 Sept. |  Light rain | 21° /14° | 3.6 mm | 4 | |
| 12 Sept. | Partly cloudy | 21° /14° | 0.9 mm | 4.5 | |
| 13 Sept. |  Thundery outbreaks possible | 19° /12° | 4.5 mm | 4 | |
| 14 Sept. | Patchy rain possible | 19° /12° | 2 mm | 4 | |
| 15 Sept. | Sunny | 20° /12° | 0.9 mm | 4.2 | |
| 16 Sept. | Light rain | 23° /13° | 4.8 mm | 4 | |
| 17 Sept. | Patchy rain possible | 22° /13° | 0.4 mm | 4.1 | |
| 18 Sept. | Sunny | 22° /14° | 0.1 mm | 4 | |
| 19 Sept. |  Cloudy | 23° /14° | 0.1 mm | 3.9 | |
| 20 Sept. | Patchy rain possible | 24° /13° | 1.7 mm | 3.8 | |
| 21 Sept. | Partly cloudy | 24° /13° | 0.2 mm | 3.7 | |
| 22 Sept. | Light rain | 19° /11° | 0.6 mm | 3.7 | |
| 23 Sept. | Partly cloudy | 18° /10° | 0.8 mm | 3.6 | |
| 24 Sept. | Patchy rain possible | 18° /10° | 1 mm | 3.5 | |
| 25 Sept. | Patchy rain possible | 18° /10° | 0.3 mm | 3.4 | |
| 26 Sept. | Sunny | 20° /11° | 0 mm | 3.3 | |
| 27 Sept. | Overcast | 22° /12° | 0 mm | 3.3 | |
| 28 Sept. | Partly cloudy | 21° /10° | 0.1 mm | 3.2 | |
| 29 Sept. | Patchy rain possible | 19° /11° | 0 mm | 3.1 | |
| 30 Sept. | Patchy rain possible | 17° /10° | 0.3 mm | 3 | |
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Important Notice
Our weather forecast for Greater Poland 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 Greater Poland forecast closer to your planned date for the most up-to-date weather information.
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Greater Poland in September - FAQ
What are the expected maximum and minimum temperatures in Greater Poland 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 Greater Poland during September?
In September, Greater Poland can expect light to moderate rainfall, totaling 32.5 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Greater Poland during September?
The average wind speed in Greater Poland during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Greater Poland
Explore the daily rainfall trends and prepare for Greater Polands September weather 💧
Typically, Greater Poland has 6 rainy days in September with a total of 32.5 mm of rainfall.
UV exposure in Greater Poland during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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