Cologne
September
Weather in Cologne for September 2025
Your guide to Cologne weather in September - trends and predictions
In general, the average temperature in Cologne at the beginning of September is 22.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 20.3 °C by the end of September.
Cologne in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 97.6 mm.
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Temperatures
Rain 🌧️
More
12
Dry days
18
Rainy days
0
Snow days
21°/12°
Temperatures
18 km/h
Avg max wind
72 %
Avg humidity
Cologne Weather September
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Temperatures trend during September in Cologne
See the weather trend as well as the moving average line
September weather in Cologne day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Heavy rain at times | 24° /18° | 9.2 mm | 5 | |
| 2 Sept. |  Partly cloudy | 28° /16° | 0 mm | 7 | |
| 3 Sept. |  Moderate or heavy rain shower | 21° /17° | 10.8 mm | 5 | |
| 4 Sept. | Moderate or heavy rain shower | 17° /14° | 14.3 mm | 4 | |
| 5 Sept. |  Patchy rain possible | 19° /12° | 0.9 mm | 4 | |
| 6 Sept. | Moderate or heavy rain shower | 24° /13° | 3.5 mm | 5 | |
| 7 Sept. | Moderate rain at times | 23° /15° | 1.5 mm | 5 | |
| 8 Sept. | Moderate or heavy rain shower | 21° /13° | 4.3 mm | 5 | |
| 9 Sept. | Patchy rain possible | 22° /13° | 1.5 mm | 5 | |
| 10 Sept. |  Overcast | 22° /13° | 0 mm | 5 | |
| 11 Sept. | Patchy rain possible | 19° /11° | 5.4 mm | 4 | |
| 12 Sept. | Moderate or heavy rain shower | 16° /10° | 6.2 mm | 4 | |
| 13 Sept. | Patchy rain possible | 17° /8° | 0.1 mm | 4 | |
| 14 Sept. | Partly cloudy | 20° /9° | 0 mm | 6 | |
| 15 Sept. |  Sunny | 20° /7° | 0 mm | 6 | |
| 16 Sept. | Partly cloudy | 22° /8° | 0 mm | 6 | |
| 17 Sept. | Patchy rain possible | 19° /10° | 0.2 mm | 4 | |
| 18 Sept. | Partly cloudy | 23° /11° | 0 mm | 6 | |
| 19 Sept. | Partly cloudy | 26° /12° | 0 mm | 7 | |
| 20 Sept. | Patchy rain possible | 23° /14° | 0.1 mm | 5 | |
| 21 Sept. | Moderate or heavy rain shower | 23° /14° | 3.8 mm | 5 | |
| 22 Sept. | Moderate or heavy rain shower | 21° /14° | 12.8 mm | 5 | |
| 23 Sept. | Patchy rain possible | 20° /13° | 0.5 mm | 5 | |
| 24 Sept. | Heavy rain at times | 22° /12° | 2 mm | 5 | |
| 25 Sept. |  Cloudy | 26° /12° | 0 mm | 6 | |
| 26 Sept. | Moderate or heavy rain shower | 20° /14° | 11.1 mm | 5 | |
| 27 Sept. | Moderate rain at times | 15° /12° | 7.8 mm | 4 | |
| 28 Sept. | Moderate rain at times | 17° /9° | 1.3 mm | 4 | |
| 29 Sept. | Patchy rain possible | 22° /8° | 0.3 mm | 5 | |
| 30 Sept. | Overcast | 20° /12° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Cologne 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 Cologne forecast closer to your planned date for the most up-to-date weather information.
Change Month
Cologne in September - FAQ
What are the expected maximum and minimum temperatures in Cologne during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Cologne during September?
Moderate rainfall is anticipated in Cologne during September, with a total of 97.6 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Cologne during September?
The average wind speed in Cologne during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Cologne in September?
As you prepare for your trip to Cologne 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 Cologne, 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 Cologne
Explore the daily rainfall trends and prepare for Colognes September weather 💧
UV exposure in Cologne during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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