București (Bucharest)
September
Weather in București for September 2025
Your guide to București weather in September - trends and predictions
In general, the average temperature in București at the beginning of September is 30.6 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 28 °C by the end of September.
With an average of 4 rainy days, București experiences minimal rainfall in September.
Is September a good time to visit București? check out the best time to travel to București page.
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26
Dry days
4
Rainy days
0
Snow days
29°/18°
Temperatures
20 km/h
Avg max wind
40 %
Avg humidity
București in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2 33° | 3 34° | 4  28° | 5 29° | 6  30° | 7 30° |
| 8 29° | 9 30° | 10 28° | 11 25° | 12 28° | 13 31° | 14 28° |
| 15  24° | 16 24° | 17 26° | 18 26° | 19  23° | 20 26° | 21 28° |
| 22 29° | 23 31° | 24 30° | 25 29° | 26 29° | 27 31° | 28 30° |
| 29 26° | 30 21° |
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Temperatures trend during September in București
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° /20° | 0.1 mm | 7 | |
| 2 Sept. | Partly cloudy | 33° /20° | 0 mm | 8 | |
| 3 Sept. | Partly cloudy | 34° /21° | 0.3 mm | 9 | |
| 4 Sept. | Light rain shower | 28° /19° | 2.2 mm | 7 | |
| 5 Sept. | Partly cloudy | 29° /18° | 0.2 mm | 8 | |
| 6 Sept. | Sunny | 30° /19° | 0 mm | 8 | |
| 7 Sept. | Sunny | 30° /17° | 0 mm | 8 | |
| 8 Sept. | Sunny | 29° /17° | 0 mm | 7 | |
| 9 Sept. | Sunny | 30° /16° | 0 mm | 8 | |
| 10 Sept. | Sunny | 28° /17° | 0.1 mm | 7 | |
| 11 Sept. | Sunny | 25° /15° | 1.5 mm | 6 | |
| 12 Sept. | Sunny | 28° /16° | 0.2 mm | 7 | |
| 13 Sept. | Sunny | 31° /17° | 1.3 mm | 8 | |
| 14 Sept. | Partly cloudy | 28° /16° | 1.4 mm | 7 | |
| 15 Sept. | Cloudy | 24° /15° | 0 mm | 6 | |
| 16 Sept. | Patchy rain possible | 24° /15° | 0.1 mm | 6 | |
| 17 Sept. | Sunny | 26° /14° | 0 mm | 6 | |
| 18 Sept. | Sunny | 26° /15° | 0 mm | 6 | |
| 19 Sept. | Overcast | 23° /14° | 0.2 mm | 5 | |
| 20 Sept. | Patchy rain possible | 26° /16° | 1.1 mm | 6 | |
| 21 Sept. | Sunny | 28° /15° | 0 mm | 8 | |
| 22 Sept. | Patchy rain possible | 29° /17° | 0 mm | 7 | |
| 23 Sept. | Sunny | 31° /18° | 0 mm | 8 | |
| 24 Sept. | Sunny | 30° /18° | 0 mm | 8 | |
| 25 Sept. | Sunny | 29° /17° | 0 mm | 8 | |
| 26 Sept. | Sunny | 29° /18° | 0 mm | 8 | |
| 27 Sept. | Sunny | 31° /18° | 0 mm | 8 | |
| 28 Sept. | Partly cloudy | 30° /17° | 0 mm | 8 | |
| 29 Sept. | Sunny | 26° /15° | 15.8 mm | 6 | |
| 30 Sept. | Partly cloudy | 21° /14° | 9.3 mm | 5 | |
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Important Notice
Our weather forecast for București 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 București forecast closer to your planned date for the most up-to-date weather information.
București in September - FAQ
What are the expected maximum and minimum temperatures in București during September?
During September, expect a variety of temperatures with highs around 29° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in București during September?
Rainfall in București during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 4 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 București during September?
The average wind speed in București during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to București in September?
As you prepare for your trip to București 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 București, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Footwear
- Sandals/Flip-flops: Comfortable for warm climates
- 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
September rainfall patterns in București
Explore the daily rainfall trends and prepare for Bucureștis September weather 💧
UV exposure in București during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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