Climate Chart of Cologne, Germany

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

For Cologne, Germany, the climate data describe 2013–2023. Monthly mean temperatures range from January at 3.5 °C to July at 19.8 °C, giving a broad sense of the year’s cooler and warmer averages. Rainfall and sunshine also vary by month, while the snowfall figures provide a separate measure of average daily amounts. These figures describe monthly means, not the conditions visitors are guaranteed to experience on any particular day.

Climate overview

Temperature

The lowest monthly mean temperature is January at 3.5 °C, while the highest is July at 19.8 °C. These are averages for the month, rather than daytime highs, so they do not indicate the full range of temperatures a visitor might encounter. Across the calendar months, the unweighted mean of monthly mean temperatures is 11.4 °C; it is not a day-weighted annual average.

Rain

Mean daily rainfall is lowest in April at 1.61 mm/day, making it a conditional option for visitors prioritising a lower average daily amount. The highest monthly mean is in July at 2.96 mm/day, when packing rain protection is especially relevant. These are daily averages, not monthly totals, and they do not show how often rain falls or guarantee dry days. The unweighted mean across monthly values is 2.36 mm/day.

Sunshine

Average daily sunshine reaches its highest monthly mean in June at 11.25 hours/day, while the lowest is in December at 2.91 hours/day. These figures can help with planning outdoor sightseeing around typical sunshine duration, but they are not measures of day length and cannot predict the sunshine on an individual day. The unweighted mean of the monthly daily means is 7.43 hours/day.

Snow

Mean daily snowfall is highest in January at 2.21 mm/day. This is an average daily amount, not a monthly snowfall total; it does not establish the number of snowy days, snow depth, snow cover or whether conditions suit skiing. The unweighted mean across monthly daily values is 0.53 mm/day.

Best Travel Time Guide for Cologne, Germany: Ideal Seasons and Weather Insights

For visitors prioritising lower average rainfall, April is a conditional option, with mean daily rainfall of 1.61 mm/day; this average cannot promise rain-free days. In contrast, the highest monthly mean is July at 2.96 mm/day, so rain protection is sensible if travelling then. Neither figure tells you how frequently rain occurs. Those seeking cooler monthly averages can consider January, when the monthly mean temperature is 3.5 °C. For outdoor plans guided by sunshine duration, the highest mean daily sunshine is in June at 11.25 hours/day; the lowest is in December at 2.91 hours/day. These criteria point to different aspects of travel weather rather than a single best time, and sunshine hours are not day length.

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	Average: 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
Average	11.4	2.36	0.53	7.43