Weather in Cologne in September
In September, Cologne reaches 21 °C during the day on average and 10 °C at night. It rains or snows on 10 days.
- Day
- 21 °C
- Average high
- Night
- 10 °C
- Average low
- Rain days
- 10
- Days with rain or snow
- Sunshine
- 160 h
- Hours in the month
- Snow days
- 0
- Days with snow on the ground
- Frost days
- 0
- Nights below 0 °C
Average highs month by month
September in Cologne day by day
For each day: the usual high and how often it rained or snowed on that day (share of years). A dash (–) means no data.
- 1 September22 °C33 %
- 2 September23 °C27 %
- 3 September22 °C43 %
- 4 September23 °C43 %
- 5 September23 °C27 %
- 6 September23 °C30 %
- 7 September23 °C33 %
- 8 September22 °C43 %
- 9 September23 °C27 %
- 10 September22 °C40 %
- 11 September22 °C33 %
- 12 September22 °C50 %
- 13 September21 °C47 %
- 14 September21 °C27 %
- 15 September21 °C27 %
- 16 September21 °C30 %
- 17 September20 °C37 %
- 18 September21 °C30 %
- 19 September21 °C17 %
- 20 September21 °C20 %
- 21 September20 °C27 %
- 22 September20 °C33 %
- 23 September20 °C17 %
- 24 September19 °C37 %
- 25 September19 °C23 %
- 26 September19 °C30 %
- 27 September19 °C27 %
- 28 September19 °C20 %
- 29 September19 °C37 %
- 30 September18 °C50 %
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September in Cologne: the last 30 years
Warmest September: 2006 (19 °C on average), coldest: 2008 (13 °C). Highest: 34 °C on 15 September 2020. Lowest: 0 °C on 30 September 2018.
| Year | Day | Night | Precipitation | Snow days |
|---|---|---|---|---|
| 2026 | 23 °C | 11 °C | 54 mm | 0 |
| 2025 | 21 °C | 11 °C | 59 mm | 0 |
| 2024 | 22 °C | 11 °C | 127 mm | 0 |
| 2023 | 25 °C | 12 °C | 46 mm | – |
| 2022 | 20 °C | 10 °C | 134 mm | – |
| 2021 | 22 °C | 10 °C | 29 mm | 0 |
| 2020 | 23 °C | 9 °C | 54 mm | 0 |
| 2019 | 21 °C | 9 °C | 40 mm | 0 |
| 2018 | 22 °C | 9 °C | 43 mm | 0 |
| 2017 | 19 °C | 9 °C | 82 mm | 0 |
| 2016 | 25 °C | 12 °C | 19 mm | 0 |
| 2015 | 19 °C | 9 °C | 112 mm | 0 |
| 2014 | 21 °C | 10 °C | 25 mm | 0 |
| 2013 | 20 °C | 10 °C | 70 mm | 0 |
| 2012 | 20 °C | 8 °C | 31 mm | 0 |
| 2011 | 22 °C | 11 °C | 45 mm | 0 |
| 2010 | 19 °C | 9 °C | 72 mm | 0 |
| 2009 | 21 °C | 10 °C | 36 mm | 0 |
| 2008 | 18 °C | 8 °C | 52 mm | 0 |
| 2007 | 18 °C | 9 °C | 60 mm | 0 |
| 2006 | 24 °C | 13 °C | 33 mm | 0 |
| 2005 | 22 °C | 11 °C | 59 mm | 0 |
| 2004 | 21 °C | 10 °C | 97 mm | 0 |
| 2003 | 22 °C | 9 °C | 51 mm | 0 |
| 2002 | 20 °C | 8 °C | 29 mm | 0 |
| 2001 | 17 °C | 9 °C | 142 mm | 0 |
| 2000 | 20 °C | 12 °C | 111 mm | 0 |
| 1999 | 24 °C | 13 °C | 59 mm | 0 |
| 1998 | 19 °C | 12 °C | 163 mm | 0 |
| 1997 | 22 °C | 8 °C | 25 mm | 0 |
Rain day: at least 1 mm of rain or snow. Snow day: at least 1 cm of snow on the ground in the morning. Frost day: below 0 °C at night. Averages come from the last 30 years. A month only counts once it has ended.
Weather station: Köln/Bonn (16 km). Data: Deutscher Wetterdienst (DWD), CC BY 4.0.