September
Weather in Bratislava for September 2025
Your guide to Bratislava weather in September - trends and predictions
In general, the average temperature in Bratislava at the beginning of September is 29.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.1 °C by the end of September.
With an average of 3 rainy days, Bratislava experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.
Is September a good time to visit Bratislava? check out the best time to travel to Bratislava page.
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27
Dry days
3
Rainy days
0
Snow days
26°/15°
Temperatures
16 km/h
Avg max wind
57 %
Avg humidity
Bratislava in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2  31° | 3  30° | 4 29° | 5 29° | 6 27° | 7 30° |
| 8 29° | 9 27° | 10 25° | 11 27° | 12 24° | 13 18° | 14  16° |
| 15 18° | 16 19° | 17 23° | 18 26° | 19  22° | 20 24° | 21 24° |
| 22 22° | 23 20° | 24 18° | 25 22° | 26 24° | 27  22° | 28 22° |
| 29 20° | 30  20° |
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Temperatures trend during September in Bratislava
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. | Partly cloudy | 30° /16° | 0.1 mm | 8 | |
| 2 Sept. | Sunny | 31° /17° | 0 mm | 8 | |
| 3 Sept. | Patchy light rain with thunder | 30° /17° | 0.6 mm | 7 | |
| 4 Sept. | Sunny | 29° /16° | 0 mm | 8 | |
| 5 Sept. | Partly cloudy | 29° /16° | 0 mm | 8 | |
| 6 Sept. | Sunny | 27° /15° | 0.4 mm | 7 | |
| 7 Sept. | Sunny | 30° /15° | 0 mm | 8 | |
| 8 Sept. | Sunny | 29° /16° | 0 mm | 8 | |
| 9 Sept. | Sunny | 27° /15° | 11.6 mm | 6 | |
| 10 Sept. | Sunny | 25° /14° | 0 mm | 6 | |
| 11 Sept. | Sunny | 27° /14° | 0.1 mm | 7 | |
| 12 Sept. | Sunny | 24° /13° | 6.2 mm | 6 | |
| 13 Sept. | Partly cloudy | 18° /12° | 26 mm | 5 | |
| 14 Sept. | Overcast | 16° /9° | 17 mm | 4 | |
| 15 Sept. | Partly cloudy | 18° /11° | 32.7 mm | 5 | |
| 16 Sept. | Partly cloudy | 19° /12° | 11.5 mm | 5 | |
| 17 Sept. | Sunny | 23° /12° | 0.3 mm | 6 | |
| 18 Sept. | Partly cloudy | 26° /14° | 0 mm | 7 | |
| 19 Sept. | Light rain shower | 22° /14° | 3.4 mm | 5 | |
| 20 Sept. | Sunny | 24° /12° | 0 mm | 7 | |
| 21 Sept. | Patchy rain possible | 24° /13° | 0 mm | 6 | |
| 22 Sept. | Patchy rain possible | 22° /12° | 0 mm | 6 | |
| 23 Sept. | Overcast | 20° /12° | 0 mm | 5 | |
| 24 Sept. | Overcast | 18° /13° | 1.2 mm | 5 | |
| 25 Sept. | Patchy rain possible | 22° /12° | 0.1 mm | 5 | |
| 26 Sept. | Sunny | 24° /14° | 0 mm | 7 | |
| 27 Sept. | Cloudy | 22° /14° | 0.4 mm | 5 | |
| 28 Sept. | Sunny | 22° /12° | 0 mm | 6 | |
| 29 Sept. | Sunny | 20° /10° | 0 mm | 6 | |
| 30 Sept. | Light rain | 20° /9° | 0.8 mm | 5 | |
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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.
Bratislava in September - FAQ
What are the expected maximum and minimum temperatures in Bratislava during September?
During September, expect a variety of temperatures with highs around 26° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Bratislava during September?
Rainfall in Bratislava during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 3 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Bratislava during September?
The average wind speed in Bratislava during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Bratislava in September?
As you prepare for your trip to Bratislava 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 Bratislava, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
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