Weather in Cologne for September 2026
Until now, September 2026 in Cologne has been nearly identical to the historical average, with a temperature of 25.6 °C (showing only a slight deviation of 0.1 °C).
Expect cooler weather in the next days in Cologne with the forecast suggesting a temperature of 22.4 °C, lower than the historical average.
In general, the average temperature in Cologne at the beginning of September is 26 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.9 °C by the end of September.
Cologne experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 152.3 mm.
Is September a good time to visit Cologne? check out the best time to travel to Cologne page.
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Cologne Weather September
Temperatures trend during September in Cologne
September weather in Cologne day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 26° /15° | 4.8 mm | 6 | |
| 2 Sept. |  Partly cloudy | 26° /15° | 4.9 mm | 6 | |
| 3 Sept. |  Sunny | 27° /15° | 0.6 mm | 7 | |
| 4 Sept. |  Overcast | 27° /16° | 4.1 mm | 6 | |
| 5 Sept. | Overcast | 23° /16° | 12.2 mm | 5 | |
| 6 Sept. | Sunny | 26° /15° | 0.5 mm | 6 | |
| 7 Sept. | Sunny | 27° /15° | 0.2 mm | 7 | |
| 8 Sept. | Sunny | 26° /16° | 5.3 mm | 6 | |
| 9 Sept. | Sunny | 24° /15° | 14.1 mm | 5 | |
| 10 Sept. | Sunny | 23° /14° | 17.3 mm | 5 | |
| 11 Sept. | Sunny | 25° /14° | 3 mm | 6 | |
| 12 Sept. | Sunny | 21° /14° | 0.1 mm | 4.7 | |
| 13 Sept. | Overcast | 21° /16° | 0.1 mm | 4.6 | |
| 14 Sept. | Sunny | 23° /16° | 0.1 mm | 5.3 | |
| 15 Sept. | Sunny | 23° /17° | 0 mm | 6 | |
| 16 Sept. |  Smoky haze | 23° /17° | 0.4 mm | 6 | |
| 17 Sept. | Patchy rain possible | 22° /17° | 9 mm | 5 | |
| 18 Sept. | Light rain shower | 20° /16° | 14.2 mm | 4 | |
| 19 Sept. | Patchy rain possible | 22° /16° | 13.8 mm | 5 | |
| 20 Sept. | Patchy rain possible | 22° /17° | 6.6 mm | 5 | |
| 21 Sept. | Sunny | 24° /17° | 1.8 mm | 6 | |
| 22 Sept. | Overcast | 23° /18° | 2.5 mm | 6 | |
| 23 Sept. | Sunny | 23° /17° | 0 mm | 6 | |
| 24 Sept. | Sunny | 24° /18° | 0 mm | 6 | |
| 25 Sept. | Sunny | 23° /18° | 0 mm | 6 | |
| 26 Sept. | Sunny | 17° /11° | 5.6 mm | 4 | |
| 27 Sept. | Sunny | 21° /12° | 5.7 mm | 5 | |
| 28 Sept. | Sunny | 20° /11° | 6.8 mm | 5 | |
| 29 Sept. | Sunny | 21° /10° | 0 mm | 5 | |
| 30 Sept. | Patchy rain possible | 20° /12° | 0.3 mm | 5 | |
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Cologne weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 28°/17° | 22°/13° | 17°/11° |
| Rainfall | 140 mm | 152 mm | 184 mm |
| Wind | 9.4 km/h | 8.5 km/h | 6.9 km/h |
| Humidity | 70% | 74% | 78% |
| Rainy days | 24 days | 24 days | 23 days |
| Dry days | 7 days | 6 days | 8 days |
Planning a trip to Cologne? Discover the best time to visit
Cologne in September - FAQ
What are the expected maximum and minimum temperatures in Cologne during September?
How much rainfall should be expected in Cologne during September?
What are the typical wind conditions in Cologne during September?
September rainfall patterns in Cologne
UV exposure in Cologne during September
What to pack to Cologne in September?
Mild & changeable · highs around 22 °C, frequent showers
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
👟 Footwear
🎒 Accessories
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Where is Cologne?Get accurate weather forecasts for Cologne, located at latitude 45.579 and longitude 9.942. Stay updated with localized weather information tailored for Cologne.