Sofia (Borovets)
September
Weather in Sofia for September 2025
Your guide to Sofia weather in September - trends and predictions
In general, the average temperature in Sofia at the beginning of September is 22.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.3 °C by the end of September.
Sofia experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 63.7 mm.
Temperatures
Rain 🌧️
20
Dry days
10
Rainy days
0
Snow days
19°/10°
Temperatures
9 km/h
Avg max wind
65 %
Avg humidity
Sofia in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2  23° | 3 25° | 4 24° | 5 24° | 6  22° | 7  20° |
| 8 22° | 9 24° | 10 15° | 11 12° | 12 22° | 13 22° | 14 19° |
| 15 14° | 16 12° | 17 15° | 18  10° | 19 12° | 20 13° | 21 16° |
| 22  17° | 23 18° | 24 20° | 25 20° | 26 21° | 27 24° | 28 24° |
| 29 17° | 30 9° |
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Temperatures trend during September in Sofia
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 | 21° /12° | 0 mm | 6 | |
| 2 Sept. | Patchy rain possible | 23° /12° | 0.2 mm | 5 | |
| 3 Sept. | Patchy rain possible | 25° /14° | 0 mm | 5 | |
| 4 Sept. | Patchy rain possible | 24° /16° | 0.1 mm | 5 | |
| 5 Sept. | Patchy rain possible | 24° /14° | 0.1 mm | 5 | |
| 6 Sept. | Moderate rain at times | 22° /14° | 9.5 mm | 5 | |
| 7 Sept. | Patchy light rain with thunder | 20° /12° | 8.9 mm | 5 | |
| 8 Sept. | Patchy rain possible | 22° /11° | 0 mm | 5 | |
| 9 Sept. | Patchy rain possible | 24° /12° | 0.2 mm | 5 | |
| 10 Sept. | Light rain shower | 15° /11° | 10.1 mm | 4 | |
| 11 Sept. | Light rain shower | 12° /9° | 8.2 mm | 3 | |
| 12 Sept. | Partly cloudy | 22° /9° | 0 mm | 6 | |
| 13 Sept. | Patchy rain possible | 22° /12° | 0.3 mm | 5 | |
| 14 Sept. | Patchy rain possible | 19° /7° | 0.6 mm | 4 | |
| 15 Sept. | Light rain shower | 14° /5° | 1.3 mm | 3 | |
| 16 Sept. | Patchy rain possible | 12° /6° | 0.6 mm | 3 | |
| 17 Sept. | Patchy rain possible | 15° /6° | 0.1 mm | 4 | |
| 18 Sept. | Light rain | 10° /9° | 7.2 mm | 3 | |
| 19 Sept. | Light rain shower | 12° /9° | 6 mm | 3 | |
| 20 Sept. | Light rain shower | 13° /8° | 4.6 mm | 3 | |
| 21 Sept. | Patchy rain possible | 16° /7° | 0 mm | 4 | |
| 22 Sept. | Sunny | 17° /6° | 0 mm | 5 | |
| 23 Sept. | Patchy rain possible | 18° /7° | 0 mm | 4 | |
| 24 Sept. | Partly cloudy | 20° /9° | 0 mm | 6 | |
| 25 Sept. | Patchy rain possible | 20° /11° | 0.3 mm | 5 | |
| 26 Sept. | Patchy rain possible | 21° /12° | 0 mm | 5 | |
| 27 Sept. | Sunny | 24° /13° | 0 mm | 6 | |
| 28 Sept. | Sunny | 24° /14° | 0 mm | 6 | |
| 29 Sept. | Light rain shower | 17° /4° | 3 mm | 4 | |
| 30 Sept. | Patchy rain possible | 9° /3° | 2.3 mm | 2 | |
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Important Notice
Our weather forecast for Sofia 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 Sofia forecast closer to your planned date for the most up-to-date weather information.
Sofia in September - FAQ
What are the expected maximum and minimum temperatures in Sofia during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sofia during September?
Moderate rainfall is anticipated in Sofia during September, with a total of 63.7 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sofia during September?
The average wind speed in Sofia during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sofia
Explore the daily rainfall trends and prepare for Sofias September weather 💧
UV exposure in Sofia during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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