Koblenz
September
Weather in Koblenz for September 2025
Your guide to Koblenz weather in September - trends and predictions
In general, the average temperature in Koblenz at the beginning of September is 26 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19 °C by the end of September.
Koblenz sees moderate rainfall in September, averaging 7 rainy days.
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23
Dry days
7
Rainy days
0
Snow days
25°/8°
Temperatures
12 km/h
Avg max wind
72 %
Avg humidity
Koblenz in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2  28° | 3 26° | 4  22° | 5  29° | 6 24° | 7 29° |
| 8 25° | 9 25° | 10 24° | 11 23° | 12  21° | 13 16° | 14  18° |
| 15 21° | 16 21° | 17 25° | 18 24° | 19  22° | 20 23° | 21  24° |
| 22  22° | 23 17° | 24 18° | 25 19° | 26 21° | 27  20° | 28 19° |
| 29 19° | 30 17° |
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Temperatures trend during September in Koblenz
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. | Moderate rain | 24° /12° | 3.2 mm | 5 | |
| 2 Sept. | Fog | 28° /12° | 2.8 mm | 6 | |
| 3 Sept. | Mist | 26° /13° | 0.6 mm | 6 | |
| 4 Sept. | Partly cloudy | 22° /12° | 5.4 mm | 6 | |
| 5 Sept. | Sunny | 29° /12° | 0.1 mm | 7 | |
| 6 Sept. | Sunny | 24° /12° | 0.2 mm | 6 | |
| 7 Sept. | Sunny | 29° /11° | 0 mm | 7 | |
| 8 Sept. | Sunny | 25° /12° | 0.8 mm | 6 | |
| 9 Sept. | Sunny | 25° /13° | 5.7 mm | 7 | |
| 10 Sept. | Sunny | 24° /12° | 0.7 mm | 6 | |
| 11 Sept. | Sunny | 23° /9° | 3.1 mm | 6 | |
| 12 Sept. | Moderate or heavy rain with thunder | 21° /9° | 17.6 mm | 5 | |
| 13 Sept. | Mist | 16° /7° | 0.8 mm | 4 | |
| 14 Sept. | Cloudy | 18° /7° | 0 mm | 5 | |
| 15 Sept. | Sunny | 21° /5° | 0 mm | 6 | |
| 16 Sept. | Partly cloudy | 21° /10° | 1 mm | 6 | |
| 17 Sept. | Mist | 25° /12° | 0.5 mm | 6 | |
| 18 Sept. | Mist | 24° /11° | 1.2 mm | 6 | |
| 19 Sept. | Patchy rain possible | 22° /11° | 0.3 mm | 5 | |
| 20 Sept. | Partly cloudy | 23° /9° | 0 mm | 6 | |
| 21 Sept. | Heavy rain | 24° /9° | 5.5 mm | 6 | |
| 22 Sept. | Light drizzle | 22° /8° | 1.1 mm | 5 | |
| 23 Sept. | Light rain shower | 17° /7° | 1.7 mm | 4 | |
| 24 Sept. | Partly cloudy | 18° /7° | 1.8 mm | 5 | |
| 25 Sept. | Partly cloudy | 19° /8° | 2.8 mm | 5 | |
| 26 Sept. | Sunny | 21° /10° | 7.5 mm | 5 | |
| 27 Sept. | Overcast | 20° /9° | 1.6 mm | 5 | |
| 28 Sept. | Partly cloudy | 19° /7° | 1.2 mm | 5 | |
| 29 Sept. | Patchy rain possible | 19° /8° | 0.3 mm | 4 | |
| 30 Sept. | Mist | 17° /6° | 0.5 mm | 4 | |
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Important Notice
Our weather forecast for Koblenz 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 Koblenz forecast closer to your planned date for the most up-to-date weather information.
Koblenz in September - FAQ
What are the expected maximum and minimum temperatures in Koblenz during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Koblenz during September?
Significant rainfall exceeding 102.7 mm is expected in Koblenz during September, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Koblenz during September?
The average wind speed in Koblenz during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Koblenz in September?
As you prepare for your trip to Koblenz 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 Koblenz, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Koblenz
Explore the daily rainfall trends and prepare for Koblenzs September weather 💧
UV exposure in Koblenz during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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