Gdańsk
September
Weather in Gdańsk for September 2025
Your guide to Gdańsk weather in September - trends and predictions
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 19.7 °C by the end of September.
With an average of 4 rainy days, Gdańsk experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.
Is September a good time to visit Gdańsk? check out the best time to travel to Gdańsk page.
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26
Dry days
4
Rainy days
0
Snow days
23°/13°
Temperatures
18 km/h
Avg max wind
65 %
Avg humidity
Gdańsk in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  20° | 2  21° | 3  23° | 4 24° | 5  25° | 6 25° | 7 25° |
| 8 27° | 9 26° | 10 24° | 11 23° | 12 21° | 13 19° | 14 16° |
| 15 17° | 16 23° | 17  23° | 18 23° | 19  21° | 20 21° | 21 24° |
| 22 23° | 23 21° | 24 20° | 25 19° | 26 21° | 27 23° | 28 21° |
| 29 18° | 30 16° |
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Temperatures trend during September in Gdańsk
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy light drizzle | 20° /11° | 0.3 mm | 5 | |
| 2 Sept. | Partly cloudy | 21° /12° | 0 mm | 6 | |
| 3 Sept. | Overcast | 23° /13° | 0 mm | 6 | |
| 4 Sept. | Overcast | 24° /14° | 0 mm | 6 | |
| 5 Sept. | Sunny | 25° /14° | 0 mm | 7 | |
| 6 Sept. | Sunny | 25° /15° | 0 mm | 6 | |
| 7 Sept. | Partly cloudy | 25° /15° | 0 mm | 7 | |
| 8 Sept. | Sunny | 27° /15° | 0 mm | 7 | |
| 9 Sept. | Overcast | 26° /16° | 0.4 mm | 6 | |
| 10 Sept. | Sunny | 24° /14° | 0.7 mm | 6 | |
| 11 Sept. | Sunny | 23° /13° | 0 mm | 6 | |
| 12 Sept. | Partly cloudy | 21° /13° | 2.5 mm | 6 | |
| 13 Sept. | Overcast | 19° /10° | 7.7 mm | 4 | |
| 14 Sept. | Overcast | 16° /12° | 2.1 mm | 4 | |
| 15 Sept. | Sunny | 17° /12° | 0.3 mm | 5 | |
| 16 Sept. | Sunny | 23° /12° | 0 mm | 6 | |
| 17 Sept. | Cloudy | 23° /13° | 0 mm | 6 | |
| 18 Sept. | Partly cloudy | 23° /15° | 0 mm | 7 | |
| 19 Sept. | Patchy rain possible | 21° /14° | 1.4 mm | 6 | |
| 20 Sept. | Patchy rain possible | 21° /13° | 0.1 mm | 6 | |
| 21 Sept. | Sunny | 24° /13° | 0 mm | 7 | |
| 22 Sept. | Light rain shower | 23° /13° | 0.6 mm | 6 | |
| 23 Sept. | Patchy light rain | 21° /12° | 5 mm | 5 | |
| 24 Sept. | Patchy rain possible | 20° /11° | 0.6 mm | 5 | |
| 25 Sept. | Partly cloudy | 19° /10° | 0.1 mm | 5 | |
| 26 Sept. | Cloudy | 21° /12° | 1.3 mm | 5 | |
| 27 Sept. | Cloudy | 23° /15° | 1.2 mm | 5 | |
| 28 Sept. | Cloudy | 21° /12° | 0.4 mm | 5 | |
| 29 Sept. | Patchy rain possible | 18° /11° | 0.1 mm | 4 | |
| 30 Sept. | Patchy rain possible | 16° /10° | 0.3 mm | 4 | |
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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.
Gdańsk in September - FAQ
What are the expected maximum and minimum temperatures in Gdańsk during September?
Enjoy moderate daytime temperatures of up to 23° 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?
Expect minimal rainfall in Gdańsk during September, with a total of 17.8 mm over approximately 4 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Gdańsk during September?
The average wind speed in Gdańsk during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Gdańsk in September?
As you prepare for your trip to Gdańsk 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 Gdańsk, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- 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
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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