Gdynia
September
Weather in Gdynia for September 2025
Your guide to Gdynia weather in September - trends and predictions
In general, the average temperature in Gdynia at the beginning of September is 22.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.9 °C by the end of September.
The climate of Gdynia in September is notably wet, with an average of 11 rainy days, and a total of 45.6 mm of precipitation.
Temperatures
Rain 🌧️
19
Dry days
11
Rainy days
0
Snow days
20°/15°
Temperatures
23 km/h
Avg max wind
69 %
Avg humidity
Gdynia Weather September
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Temperatures trend during September in Gdynia
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September weather in Gdynia day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 19° /13° | 0 mm | 4 | |
| 2 Sept. |  Patchy rain possible | 19° /14° | 0.1 mm | 4 | |
| 3 Sept. |  Sunny | 23° /17° | 0 mm | 6 | |
| 4 Sept. |  Partly cloudy | 24° /19° | 0 mm | 6 | |
| 5 Sept. | Partly cloudy | 24° /18° | 0 mm | 6 | |
| 6 Sept. | Partly cloudy | 23° /18° | 0 mm | 6 | |
| 7 Sept. | Partly cloudy | 25° /18° | 0 mm | 7 | |
| 8 Sept. | Sunny | 27° /18° | 0 mm | 7 | |
| 9 Sept. |  Heavy rain at times | 25° /18° | 3 mm | 6 | |
| 10 Sept. |  Moderate rain at times | 20° /14° | 5.2 mm | 5 | |
| 11 Sept. | Patchy rain possible | 19° /12° | 0.5 mm | 4 | |
| 12 Sept. | Heavy rain at times | 15° /12° | 7.3 mm | 4 | |
| 13 Sept. | Moderate rain at times | 15° /11° | 12.5 mm | 4 | |
| 14 Sept. | Patchy rain possible | 16° /15° | 2.4 mm | 4 | |
| 15 Sept. | Moderate rain at times | 17° /16° | 4.4 mm | 4 | |
| 16 Sept. |  Cloudy | 21° /17° | 0 mm | 5 | |
| 17 Sept. | Sunny | 21° /16° | 0 mm | 6 | |
| 18 Sept. | Partly cloudy | 21° /15° | 0 mm | 6 | |
| 19 Sept. | Sunny | 19° /15° | 0 mm | 5 | |
| 20 Sept. | Sunny | 20° /14° | 0 mm | 6 | |
| 21 Sept. | Sunny | 20° /15° | 0 mm | 6 | |
| 22 Sept. | Sunny | 18° /13° | 0 mm | 5 | |
| 23 Sept. | Sunny | 21° /14° | 0 mm | 6 | |
| 24 Sept. | Partly cloudy | 22° /14° | 0.4 mm | 6 | |
| 25 Sept. | Patchy rain possible | 18° /13° | 0.2 mm | 4 | |
| 26 Sept. | Moderate or heavy rain shower | 18° /14° | 7.4 mm | 4 | |
| 27 Sept. | Patchy rain possible | 19° /15° | 1.7 mm | 4 | |
| 28 Sept. | Patchy rain possible | 15° /11° | 0.1 mm | 4 | |
| 29 Sept. | Patchy rain possible | 13° /9° | 0.4 mm | 3 | |
| 30 Sept. | Overcast | 13° /9° | 0 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Gdynia 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 Gdynia forecast closer to your planned date for the most up-to-date weather information.
Change Month
Gdynia in September - FAQ
What are the expected maximum and minimum temperatures in Gdynia during September?
During September, expect a variety of temperatures with highs around 20° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Gdynia during September?
In September, Gdynia can expect light to moderate rainfall, totaling 45.6 mm across approximately 11 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Gdynia during September?
The average wind speed in Gdynia during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Gdynia
Explore the daily rainfall trends and prepare for Gdynias September weather 💧
UV exposure in Gdynia during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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