North Rhine-Westphalia (Köln)
September
Weather in North Rhine-Westphalia for September 2026
Your guide to North Rhine-Westphalia weather in September - trends and predictions
In general, the average temperature in North Rhine-Westphalia at the beginning of September is 26 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.3 °C by the end of September.
North Rhine-Westphalia experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 82.8 mm.
Is September a good time to visit North Rhine-Westphalia? check out the best time to travel to North Rhine-Westphalia page.
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Temperatures
Rain 🌧️
More
7
Dry days
23
Rainy days
0
Snow days
22°/13°
Temperatures
14 km/h
Avg max wind
67 %
Avg humidity
North Rhine-Westphalia Weather September
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What’s the Weather Like in North Rhine-Westphalia This September?
Discover the average temperatures and weather trends across North Rhine-Westphalia’s cities this September.
Temperatures trend during September in North Rhine-Westphalia
See the weather trend as well as the moving average line
September weather in North Rhine-Westphalia day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Cloudy | 24° /13° | 9.6 mm | 6 | |
| 2 Sept. |  Patchy rain possible | 26° /14° | 2.7 mm | 6 | |
| 3 Sept. | Patchy rain possible | 25° /15° | 1 mm | 6 | |
| 4 Sept. | Light rain shower | 24° /14° | 4.1 mm | 6 | |
| 5 Sept. |  Overcast | 28° /15° | 0.3 mm | 6 | |
| 6 Sept. |  Sunny | 27° /15° | 0.4 mm | 6 | |
| 7 Sept. | Sunny | 28° /15° | 2.7 mm | 7 | |
| 8 Sept. | Sunny | 24° /15° | 2.1 mm | 6 | |
| 9 Sept. | Light rain shower | 24° /14° | 6.2 mm | 6 | |
| 10 Sept. |  Moderate or heavy rain shower | 22° /13° | 4.5 mm | 5 | |
| 11 Sept. | Patchy rain possible | 22° /14° | 2.9 mm | 5 | |
| 12 Sept. | Light rain shower | 22° /12° | 0.9 mm | 5 | |
| 13 Sept. | Light rain shower | 19° /11° | 4.7 mm | 5 | |
| 14 Sept. | Moderate rain at times | 19° /11° | 5.3 mm | 5 | |
| 15 Sept. |  Partly cloudy | 21° /12° | 2.4 mm | 5 | |
| 16 Sept. | Patchy rain possible | 20° /13° | 1.9 mm | 5 | |
| 17 Sept. | Patchy rain possible | 21° /12° | 1.8 mm | 5 | |
| 18 Sept. | Patchy rain possible | 22° /13° | 3.6 mm | 5 | |
| 19 Sept. | Partly cloudy | 22° /12° | 0.6 mm | 5 | |
| 20 Sept. | Partly cloudy | 22° /13° | 0.3 mm | 5 | |
| 21 Sept. | Sunny | 21° /11° | 5.2 mm | 5 | |
| 22 Sept. | Sunny | 20° /9° | 0.5 mm | 5 | |
| 23 Sept. | Overcast | 19° /9° | 0.9 mm | 5 | |
| 24 Sept. | Overcast | 19° /11° | 0.9 mm | 5 | |
| 25 Sept. | Sunny | 19° /11° | 2.8 mm | 5 | |
| 26 Sept. | Moderate rain at times | 19° /11° | 5.8 mm | 4 | |
| 27 Sept. | Light rain shower | 18° /10° | 3.6 mm | 4 | |
| 28 Sept. | Overcast | 18° /9° | 1.2 mm | 4 | |
| 29 Sept. | Overcast | 18° /10° | 1.5 mm | 4 | |
| 30 Sept. | Partly cloudy | 17° /8° | 1 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for North Rhine-Westphalia 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 North Rhine-Westphalia forecast closer to your planned date for the most up-to-date weather information.
Change Month
North Rhine-Westphalia weather in September vs August vs October
Compare September weather in North Rhine-Westphalia with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 24°/15° | 22°/13° | 17°/9° |
| Rainfall | 104 mm | 83 mm | 94 mm |
| Wind | 13.8 km/h | 13.7 km/h | 15.6 km/h |
| Humidity | 64% | 67% | 74% |
| Rainy days | 25 days | 23 days | 28 days |
| Dry days | 6 days | 7 days | 3 days |
Planning a trip to North Rhine-Westphalia? Discover the best time to visit
North Rhine-Westphalia in September - FAQ
What are the expected maximum and minimum temperatures in North Rhine-Westphalia during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in North Rhine-Westphalia during September?
Moderate rainfall is anticipated in North Rhine-Westphalia during September, with a total of 82.8 mm spread over approximately 23 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in North Rhine-Westphalia during September?
The average wind speed in North Rhine-Westphalia during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to North Rhine-Westphalia in September?
As you prepare for your trip to North Rhine-Westphalia 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 North Rhine-Westphalia, 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 North Rhine-Westphalia
Explore the daily rainfall trends and prepare for North Rhine-Westphalias September weather 💧
Typically, North Rhine-Westphalia has 23 rainy days in September with a total of 82.8 mm of rainfall.
UV exposure in North Rhine-Westphalia during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Provinces in North Rhine-Westphalia
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