Köln Climate by Month
The temperature in Köln can vary greatly throughout the year.
The temperatures shift from warm
to cold.
It receives mid-range precipitation levels.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
Depending on the time of the year, temperatures range from comfortable to chilly in Köln. Average daytime temperatures range from a comfortable 25°C in July, the warmest time of the year, to a chilly 6°C during cooler months like January. At night, temperatures typically average around 1°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Generally, Köln has a moderate amount of precipitation, averaging 954 mm of rain/snowfall annually. While rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 99 mm of precipitation, spread over 18 rainy days. In contrast, April experiences a drier climate, with about 57 mm of rainfall spread across 16 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Köln. While July receives considerable daily sunshine with up to 7.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.5 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
The best time of year to visit Köln in Germany
During the months of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
July has an average maximum temperature of 25°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 6°C.
December tops the wettest month list with 99 mm of rainfall.
April is the driest month with 57 mm of precipitation.
July is the sunniest month with an average of 209 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
