Köln, North Rhine-Westphalia, Germany climate
Average temperatures, precipitation and all-time records for Köln, North Rhine-Westphalia, Germany, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is August, averaging a high of 23°C, and its coldest is January, with an average low of 0°C.
Cologne is the fourth-most populous city of Germany and the largest city of the German state of North Rhine-Westphalia with nearly 1.1 million inhabitants in the city proper and over 3.1 million people in the Cologne Bonn urban region. via Wikipedia
Köln average temperatures by month
Typical daily high and low, and average precipitation, for each month in Köln, North Rhine-Westphalia, Germany, based on 1980–2026 records. The wettest month is January (3 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 5°C | 0°C | 3 mm |
| February | 6°C | 0°C | 3 mm |
| March | 10°C | 3°C | 3 mm |
| April | 14°C | 5°C | 3 mm |
| May | 18°C | 9°C | 3 mm |
| June | 21°C | 12°C | 3 mm |
| July | 23°C | 14°C | 3 mm |
| August | 23°C | 14°C | 3 mm |
| September | 19°C | 11°C | 3 mm |
| October | 14°C | 8°C | 3 mm |
| November | 9°C | 4°C | 3 mm |
| December | 6°C | 2°C | 3 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 40°C on 2019-07-25
- Coldest day on record: -18°C on 2009-01-07
Percentiles compare each day to Köln, North Rhine-Westphalia, Germany's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →