Bolu
September
Weather in Bolu for September 2025
Your guide to Bolu weather in September - trends and predictions
In general, the average temperature in Bolu at the beginning of September is 24.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 24 °C by the end of September.
The climate of Bolu in September is notably wet, with an average of 14 rainy days, and a total of 97.5 mm of precipitation.
Temperatures
Rain 🌧️
16
Dry days
14
Rainy days
0
Snow days
24°/10°
Temperatures
11 km/h
Avg max wind
70 %
Avg humidity
Bolu in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2  24° | 3  24° | 4  26° | 5  25° | 6 25° | 7 25° |
| 8  24° | 9 26° | 10 30° | 11 28° | 12 27° | 13 30° | 14 29° |
| 15 27° | 16 18° | 17 22° | 18 22° | 19 20° | 20 19° | 21 20° |
| 22 15° | 23  14° | 24 21° | 25 23° | 26 24° | 27 27° | 28 30° |
| 29 28° | 30 15° |
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Temperatures trend during September in Bolu
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. | Patchy light rain with thunder | 25° /11° | 12.7 mm | 6 | |
| 2 Sept. | Moderate or heavy rain shower | 24° /14° | 12.2 mm | 5 | |
| 3 Sept. | Patchy rain possible | 24° /11° | 6.5 mm | 5 | |
| 4 Sept. | Partly cloudy | 26° /10° | 0 mm | 7 | |
| 5 Sept. | Sunny | 25° /9° | 0 mm | 7 | |
| 6 Sept. | Sunny | 25° /9° | 0 mm | 7 | |
| 7 Sept. | Patchy rain possible | 25° /11° | 0.1 mm | 6 | |
| 8 Sept. | Thundery outbreaks possible | 24° /10° | 1 mm | 5 | |
| 9 Sept. | Patchy rain possible | 26° /12° | 0.4 mm | 6 | |
| 10 Sept. | Sunny | 30° /13° | 0 mm | 7 | |
| 11 Sept. | Patchy rain possible | 28° /12° | 0.9 mm | 6 | |
| 12 Sept. | Patchy rain possible | 27° /14° | 2.4 mm | 6 | |
| 13 Sept. | Sunny | 30° /15° | 0 mm | 7 | |
| 14 Sept. | Sunny | 29° /14° | 0 mm | 7 | |
| 15 Sept. | Patchy rain possible | 27° /12° | 3.3 mm | 6 | |
| 16 Sept. | Light rain shower | 18° /10° | 3.4 mm | 4 | |
| 17 Sept. | Patchy rain possible | 22° /11° | 0.1 mm | 5 | |
| 18 Sept. | Light rain shower | 22° /9° | 4.1 mm | 5 | |
| 19 Sept. | Light rain shower | 20° /7° | 3.4 mm | 5 | |
| 20 Sept. | Patchy light rain with thunder | 19° /7° | 2.1 mm | 4 | |
| 21 Sept. | Patchy light rain with thunder | 20° /8° | 6.4 mm | 5 | |
| 22 Sept. | Light rain shower | 15° /5° | 2.8 mm | 4 | |
| 23 Sept. | Light rain | 14° /4° | 6.7 mm | 3 | |
| 24 Sept. | Sunny | 21° /4° | 0 mm | 6 | |
| 25 Sept. | Sunny | 23° /8° | 0 mm | 6 | |
| 26 Sept. | Sunny | 24° /13° | 0 mm | 6 | |
| 27 Sept. | Sunny | 27° /14° | 0 mm | 7 | |
| 28 Sept. | Sunny | 30° /14° | 0 mm | 8 | |
| 29 Sept. | Sunny | 28° /11° | 0 mm | 7 | |
| 30 Sept. | Moderate or heavy rain shower | 15° /4° | 28.9 mm | 4 | |
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Important Notice
Our weather forecast for Bolu 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 Bolu forecast closer to your planned date for the most up-to-date weather information.
Bolu in September - FAQ
What are the expected maximum and minimum temperatures in Bolu during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Bolu during September?
Moderate rainfall is anticipated in Bolu during September, with a total of 97.5 mm spread over approximately 14 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Bolu during September?
The average wind speed in Bolu during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Bolu
Explore the daily rainfall trends and prepare for Bolus September weather 💧
UV exposure in Bolu during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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