Bratislava
September
Weather in Bratislava for September 2026
Your guide to Bratislava weather in September - trends and predictions
Moderate frost that can cause damage to vegetation - See hour by hour.
Until now, September 2026 in Bratislava is slightly cooler than the historical average by 1.4 °C.
The forecast for the next days in Bratislava predicts a temperature of 19.9 °C, which is cooler than the historical average.
In general, the average temperature in Bratislava at the beginning of September is 27.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21 °C by the end of September.
The climate of Bratislava in September is notably wet, with an average of 13 rainy days, and a total of 111.1 mm of precipitation.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
17
Dry days
13
Rainy days
0
Snow days
23°/13°
Temperatures
19 km/h
Avg max wind
63 %
Avg humidity
Bratislava Weather September
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Temperatures trend during September in Bratislava
See the weather trend as well as the moving average line
September weather in Bratislava day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Partly cloudy | 28° /15° | 0.3 mm | 7 | |
| 2 Sept. |  Sunny | 29° /16° | 2.8 mm | 6 | |
| 3 Sept. |  Patchy light rain with thunder | 27° /17° | 2.2 mm | 5 | |
| 4 Sept. | Sunny | 29° /16° | 0 mm | 6 | |
| 5 Sept. | Partly cloudy | 27° /16° | 0.1 mm | 6 | |
| 6 Sept. | Sunny | 25° /14° | 0.4 mm | 6 | |
| 7 Sept. | Sunny | 28° /13° | 0 mm | 7 | |
| 8 Sept. | Sunny | 29° /16° | 0 mm | 7 | |
| 9 Sept. | Sunny | 28° /14° | 7.4 mm | 6 | |
| 10 Sept. | Sunny | 22° /14° | 13.9 mm | 5 | |
| 11 Sept. | Sunny | 23° /13° | 3.4 mm | 5 | |
| 12 Sept. | Sunny | 23° /12° | 3.1 mm | 5 | |
| 13 Sept. | Partly cloudy | 20° /12° | 14.4 mm | 4 | |
| 14 Sept. |  Overcast | 18° /11° | 12.3 mm | 4 | |
| 15 Sept. | Partly cloudy | 21° /11° | 16.3 mm | 5 | |
| 16 Sept. | Partly cloudy | 21° /13° | 7.7 mm | 5 | |
| 17 Sept. |  Patchy rain possible | 21° /12° | 0.6 mm | 4 | |
| 18 Sept. | Partly cloudy | 24° /12° | 0 mm | 5 | |
| 19 Sept. | Light rain shower | 24° /13° | 1.7 mm | 5 | |
| 20 Sept. | Partly cloudy | 25° /13° | 0 mm | 6 | |
| 21 Sept. | Sunny | 24° /13° | 0.2 mm | 6 | |
| 22 Sept. | Patchy rain possible | 20° /11° | 0.4 mm | 5 | |
| 23 Sept. | Overcast | 19° /11° | 0.1 mm | 5 | |
| 24 Sept. | Overcast | 17° /11° | 1.6 mm | 4 | |
| 25 Sept. | Patchy rain possible | 18° /10° | 1.1 mm | 4 | |
| 26 Sept. | Sunny | 21° /13° | 2.7 mm | 6 | |
| 27 Sept. | Sunny | 22° /11° | 0 mm | 3.9 | |
| 28 Sept. | Sunny | 23° /12° | 0 mm | 3.7 | |
| 29 Sept. | Sunny | 23° /12° | 0 mm | 3.8 | |
| 30 Sept. | Sunny | 23° /12° | 0 mm | 3.7 | |
| Next | |||||
Important Notice
Our weather forecast for Bratislava 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 Bratislava forecast closer to your planned date for the most up-to-date weather information.
Change Month
Bratislava in September - FAQ
What are the expected maximum and minimum temperatures in Bratislava 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 Bratislava during September?
Significant rainfall exceeding 111.1 mm is expected in Bratislava during September, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Bratislava during September?
The average wind speed in Bratislava during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Bratislava
Explore the daily rainfall trends and prepare for Bratislavas September weather 💧
Typically, Bratislava has 13 rainy days in September with a total of 111.1 mm of rainfall.
UV exposure in Bratislava during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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