Climate Chart of Cologne, Germany
Comprehensive Climate Chart of Cologne, Germany: Monthly Averages and Weather Trends
For Cologne, Germany, the climate data describe 2013–2023.
Monthly mean temperatures are highest in July at 19.8 °C, while the lowest monthly mean is in January at 3.5 °C. These are averages for each month, not daytime highs or lows, so they describe the broad temperature pattern rather than the conditions on any particular day. The unweighted mean of the monthly temperature means is 11.4 °C; it summarizes the calendar-month averages rather than weighting them by the number of days in each month.
Climate overview
Mean daily rainfall is highest in July at 2.96 mm/day and lowest in April at 1.61 mm/day. These figures are daily average amounts, not monthly accumulations, and they do not show how often rain falls or rule out wet weather in the lower-average month. Across the calendar months, the unweighted mean of the monthly daily-rainfall means is 2.36 mm/day. It provides a broad summary, not a day-weighted annual average or a forecast for a particular visit.
Mean daily sunshine duration is highest in June at 11.25 hours/day and lowest in December at 2.91 hours/day. These are average sunshine hours, not measures of day length, and actual conditions can vary from day to day. The unweighted mean across the monthly sunshine means is 7.43 hours/day, a summary of the calendar-month averages rather than a day-weighted annual figure.
Best Travel Time Guide for Cologne, Germany: Ideal Seasons and Weather Insights
For visitors prioritising cooler monthly averages, January is the relevant reference point, with a monthly mean temperature of 3.5 °C. This average does not predict daytime highs or the conditions on an individual day, so check forecasts close to travel. If lower average rainfall is your priority, April is the conditional option, with mean daily rainfall of 1.61 mm/day; it is not a guarantee of dry days or a measure of rain frequency. For rain preparation, note that the highest monthly daily mean is in July at 2.96 mm/day, and pack accordingly rather than relying on the average alone.
For outdoor plans guided by average sunshine duration, June has the highest mean at 11.25 hours/day, while December has the lowest at 2.91 hours/day. These figures can help with broad daylight planning, but sunshine duration is not day length and does not guarantee the conditions on your visit; use current forecasts when scheduling outdoor sightseeing.
Climate Data Overview for Cologne, Germany
Explore the comprehensive climate data for Cologne, Germany. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | ⌀ Temperature °C | ⌀ Rain (mm) / day | ⌀ Snow (mm) / day | ⌀ Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 3.5 | 2.51 | 2.21 | 3.35 |
| Feb | 4.3 | 2.15 | 1.43 | 5.19 |
| Mar | 6.3 | 2.07 | 0.83 | 7.01 |
| Apr | 9.8 | 1.61 | 0.33 | 9.37 |
| May | 13.8 | 2.17 | 0.00 | 10.37 |
| Jun | 18.4 | 2.39 | 0.00 | 11.25 |
| Jul | 19.8 | 2.96 | 0.00 | 11.08 |
| Aug | 19.5 | 2.39 | 0.00 | 10.16 |
| Sep | 16.1 | 2.39 | 0.00 | 8.55 |
| Oct | 12.3 | 2.28 | 0.00 | 5.70 |
| Nov | 7.4 | 2.75 | 0.38 | 4.17 |
| Dec | 5.2 | 2.65 | 1.18 | 2.91 |
| ⌀ Month | 11.4 | 2.36 | 0.53 | 7.43 |
