Weather in Cologne for September 2025
In general, the average temperature in Cologne at the beginning of September is 26.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.7 °C by the end of September.
Cologne sees moderate rainfall in September, averaging 10 rainy days.
Is September a good time to visit Cologne? check out the best time to travel to Cologne page.
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Cologne in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 27° | 2 28° | 3 28° | 4 27° | 5 22° | 6 25° | 7 27° |
8 25° | 9 26° | 10 26° | 11 26° | 12 22° | 13 21° | 14 21° |
15 22° | 16 22° | 17 18° | 18 22° | 19 23° | 20 22° | 21 22° |
22 20° | 23 19° | 24 20° | 25 20° | 26 19° | 27 23° | 28 21° |
29 21° | 30 21° |
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Temperatures trend during September in Cologne
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Patchy rain possible | 27° /15° | 1.1 mm | 6 | |
2 Sept. | Partly cloudy | 28° /16° | 1.2 mm | 7 | |
3 Sept. | Sunny | 28° /15° | 1.2 mm | 7 | |
4 Sept. | Overcast | 27° /17° | 8.2 mm | 6 | |
5 Sept. | Overcast | 22° /16° | 19.8 mm | 5 | |
6 Sept. | Sunny | 25° /14° | 0.9 mm | 6 | |
7 Sept. | Sunny | 27° /15° | 0 mm | 7 | |
8 Sept. | Sunny | 25° /16° | 3.7 mm | 6 | |
9 Sept. | Sunny | 26° /16° | 2.2 mm | 6 | |
10 Sept. | Sunny | 26° /15° | 0.2 mm | 7 | |
11 Sept. | Sunny | 26° /16° | 4 mm | 6 | |
12 Sept. | Partly cloudy | 22° /13° | 14.9 mm | 6 | |
13 Sept. | Thundery outbreaks possible | 21° /11° | 3.6 mm | 5 | |
14 Sept. | Moderate or heavy rain shower | 21° /12° | 7.2 mm | 5 | |
15 Sept. | Cloudy | 22° /12° | 0 mm | 6 | |
16 Sept. | Patchy rain possible | 22° /12° | 0.2 mm | 5 | |
17 Sept. | Partly cloudy | 18° /12° | 6.2 mm | 5 | |
18 Sept. | Light rain shower | 22° /13° | 4.9 mm | 6 | |
19 Sept. | Moderate rain at times | 23° /13° | 5.2 mm | 5 | |
20 Sept. | Light rain shower | 22° /13° | 4.2 mm | 5 | |
21 Sept. | Light rain shower | 22° /14° | 5.7 mm | 5 | |
22 Sept. | Light rain shower | 20° /12° | 11.3 mm | 5 | |
23 Sept. | Patchy light rain with thunder | 19° /12° | 11.4 mm | 4 | |
24 Sept. | Sunny | 20° /11° | 5.4 mm | 5 | |
25 Sept. | Sunny | 20° /11° | 1.3 mm | 5 | |
26 Sept. | Sunny | 19° /12° | 5.2 mm | 5 | |
27 Sept. | Sunny | 23° /15° | 6.8 mm | 6 | |
28 Sept. | Sunny | 21° /12° | 10.2 mm | 5 | |
29 Sept. | Sunny | 21° /11° | 0.1 mm | 6 | |
30 Sept. | Sunny | 21° /13° | 0.1 mm | 6 | |
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Cologne in September - FAQ
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
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable 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
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Cologne
UV exposure in Cologne during September
Quick links
Get accurate weather forecasts for Cologne, located at latitude 45.579 and longitude 9.942. Stay updated with localized weather information tailored for Cologne.