Weather in Greater Poland for September 2025
In general, the average temperature in Greater Poland 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, Greater Poland experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.
Is September a good time to visit Greater Poland? check out the best time to travel to Greater Poland page.
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Greater Poland in September average weather
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 Greater Poland
September weather day by day
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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Greater Poland in September - FAQ
What to pack to Greater Poland in September?
As you prepare for your trip to Greater Poland 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 Greater Poland, 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
September rainfall patterns in Greater Poland
UV exposure in Greater Poland during September
Quick links
Get accurate weather forecasts for Greater Poland, located at latitude 52.407 and longitude 16.93. Stay updated with localized weather information tailored for Greater Poland.