Gdańsk
September
Weather in Gdańsk for September 2025
Your guide to Gdańsk weather in September - trends and predictions
Yellow Strong Wind Warning - See hour by hour.
Until now, September 2025 in Gdańsk is slightly cooler than the historical average by -1.3 °C.
The forecast for the next days in Gdańsk predicts a temperature of 16.9 °C, which is cooler than the historical average.
In general, the average temperature in Gdańsk at the beginning of September is 23.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.3 °C by the end of September.
Gdańsk experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 25 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
23
Dry days
7
Rainy days
0
Snow days
22°/13°
Temperatures
19 km/h
Avg max wind
66 %
Avg humidity
Gdańsk Weather September
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Temperatures trend during September in Gdańsk
See the weather trend as well as the moving average line
September weather in Gdańsk day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy light drizzle | 21° /12° | 0.2 mm | 5 | |
| 2 Sept. |  Partly cloudy | 22° /13° | 1.6 mm | 6 | |
| 3 Sept. |  Overcast | 23° /13° | 0 mm | 5 | |
| 4 Sept. | Overcast | 25° /14° | 0 mm | 6 | |
| 5 Sept. |  Sunny | 26° /15° | 0.6 mm | 6 | |
| 6 Sept. | Sunny | 23° /15° | 0.9 mm | 6 | |
| 7 Sept. | Partly cloudy | 23° /15° | 0.2 mm | 6 | |
| 8 Sept. | Sunny | 26° /15° | 0.1 mm | 6 | |
| 9 Sept. | Overcast | 25° /15° | 0.3 mm | 6 | |
| 10 Sept. | Sunny | 24° /13° | 0.7 mm | 6 | |
| 11 Sept. | Sunny | 21° /13° | 9.2 mm | 5 | |
| 12 Sept. | Partly cloudy | 21° /13° | 1.8 mm | 5 | |
| 13 Sept. | Overcast | 19° /11° | 5.2 mm | 4 | |
| 14 Sept. |  Light rain shower | 16° /12° | 4.7 mm | 4 | |
| 15 Sept. | Sunny | 18° /11° | 0.7 mm | 4 | |
| 16 Sept. | Patchy rain possible | 18° /13° | 1 mm | 0.6 | |
| 17 Sept. | Patchy rain possible | 17° /13° | 0.9 mm | 0.7 | |
| 18 Sept. |  Cloudy | 19° /13° | 0.1 mm | 0.7 | |
| 19 Sept. | Patchy rain possible | 24° /16° | 0.6 mm | 0.9 | |
| 20 Sept. | Sunny | 25° /16° | 0 mm | 1 | |
| 21 Sept. | Patchy rain possible | 25° /17° | 0.1 mm | 5 | |
| 22 Sept. | Patchy rain possible | 18° /15° | 1.2 mm | 4 | |
| 23 Sept. | Patchy rain possible | 14° /13° | 1.2 mm | 3 | |
| 24 Sept. | Patchy rain possible | 14° /12° | 1 mm | 3 | |
| 25 Sept. | Patchy rain possible | 11° /8° | 0.4 mm | 2 | |
| 26 Sept. | Patchy rain possible | 10° /8° | 1.7 mm | 2 | |
| 27 Sept. | Patchy rain possible | 15° /9° | 0.2 mm | 3 | |
| 28 Sept. | Patchy rain possible | 13° /11° | 0.5 mm | 3 | |
| 29 Sept. | Cloudy | 14° /12° | 0.1 mm | 3 | |
| 30 Sept. | Patchy rain possible | 16° /10° | 0.3 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Gdańsk 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 Gdańsk forecast closer to your planned date for the most up-to-date weather information.
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Gdańsk in September - FAQ
What are the expected maximum and minimum temperatures in Gdańsk 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 Gdańsk during September?
In September, Gdańsk can expect light to moderate rainfall, totaling 25 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Gdańsk during September?
The average wind speed in Gdańsk during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Gdańsk
Explore the daily rainfall trends and prepare for Gdańsks September weather 💧
UV exposure in Gdańsk during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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