Weather in Poland for September 2027
In general, the average temperature in Poland at the beginning of September is 23.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.7 °C by the end of September.
The climate of Poland in September is notably wet, with an average of 11 rainy days, and a total of 80.3 mm of precipitation.
Is September a good time to visit Poland? check out the best time to travel to Poland page.
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Poland Weather September
What’s the Weather Like in Poland This September?
Temperatures trend during September in Poland
September weather in Poland day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 22° /13° | 1.7 mm | 5 | |
| 2 Sept. | Patchy rain possible | 24° /13° | 1.1 mm | 5.9 | |
| 3 Sept. |  Light rain | 23° /14° | 5.6 mm | 5 | |
| 4 Sept. |  Partly cloudy | 23° /13° | 0.3 mm | 5 | |
| 5 Sept. | Patchy rain possible | 24° /12° | 2.3 mm | 5.7 | |
| 6 Sept. |  Sunny | 22° /11° | 0.5 mm | 5.6 | |
| 7 Sept. | Partly cloudy | 25° /10° | 0 mm | 5.5 | |
| 8 Sept. | Light rain | 28° /13° | 3.5 mm | 5.4 | |
| 9 Sept. | Patchy rain possible | 25° /13° | 1.5 mm | 5.3 | |
| 10 Sept. | Light rain | 22° /13° | 2.9 mm | 5 | |
| 11 Sept. |  Moderate or heavy rain shower | 21° /12° | 5.2 mm | 5 | |
| 12 Sept. | Patchy rain possible | 22° /11° | 1.7 mm | 5 | |
| 13 Sept. | Patchy rain possible | 21° /12° | 2 mm | 4.9 | |
| 14 Sept. |  Moderate rain | 19° /13° | 10.3 mm | 4 | |
| 15 Sept. | Light rain | 21° /12° | 5.2 mm | 4.8 | |
| 16 Sept. | Light rain | 21° /11° | 4.2 mm | 4.7 | |
| 17 Sept. | Light rain | 19° /11° | 4.1 mm | 4 | |
| 18 Sept. | Light rain | 19° /10° | 3.7 mm | 4 | |
| 19 Sept. | Light rain | 17° /10° | 4.7 mm | 4 | |
| 20 Sept. | Patchy rain possible | 20° /10° | 1 mm | 4 | |
| 21 Sept. | Light rain | 19° /9° | 3.7 mm | 4.2 | |
| 22 Sept. | Light rain | 18° /9° | 5.4 mm | 4 | |
| 23 Sept. | Patchy rain possible | 17° /9° | 0.7 mm | 4 | |
| 24 Sept. | Patchy rain possible | 17° /9° | 0.7 mm | 4 | |
| 25 Sept. | Patchy rain possible | 18° /9° | 0.7 mm | 3.9 | |
| 26 Sept. |  Overcast | 20° /10° | 0.6 mm | 3.8 | |
| 27 Sept. | Sunny | 20° /10° | 0.9 mm | 3.7 | |
| 28 Sept. | Sunny | 18° /8° | 0.8 mm | 3.6 | |
| 29 Sept. | Patchy rain possible | 16° /8° | 1.2 mm | 3.6 | |
| 30 Sept. | Light rain | 15° /8° | 4.3 mm | 3.5 | |
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Guide for Poland in September
In September, Poland experiences a transition from late summer to early autumn, bringing varied weather conditions across the country. At the beginning of the month, the weather in Poland is generally mild and pleasant, with temperatures ranging from 15° in the north to 18° in the south.
The days are still relatively long, providing ample opportunity for outdoor activities and sightseeing. However, occasional rainfall can be expected, particularly in the western and northern regions.
As the month progresses, Poland begins to witness a gradual drop in temperatures. By the end of September, the weather becomes noticeably cooler, with average temperatures ranging from 10° in the north to 14° in the south.
The days become shorter, and the autumn foliage starts to make its appearance, creating picturesque landscapes across the country. Additionally, there is an increase in the frequency of rainfall, particularly in central and eastern Poland.
Overall, September in Poland offers a mix of late summer warmth and early autumn chill, making it a great time to explore the country's natural beauty and cultural attractions.