Cologne Weather in August
What's the weather like in Cologne (North Rhine-Westphalia) in August 2025?
The climate in Cologne during August can be summarized as warm and a little damp.
August is in the summer in Cologne and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 13°C (56°F) is normal.
| Daytime temperature | 23°C 73.4°F |
|---|---|
| Nightly temperature | 13.2°C 55.8°F |
| Average temperature | 18.1°C 64.6°F |
| Daily sunshine | 6.6 hrs |
| Avg rainfall | 81 mm 3.2 ins |
| Rainy days | 15 days |
| Sea temperature | 19.8°C 67.6°F |
| Humidity | 72% |
| Windspeed | 10.4kph 7 mph |
On average August is the 3rd wettest month of the year in Cologne with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
August temperatures in Cologne
August rainfall
August hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cologne in August 2025.
Other monthly averages
Best places to visit in August
Cologne weather stats
| Hottest month: | July | 22.9°C 73.2°F |
|---|---|---|
| Driest month: | February | 51mm 2ins |
| Sunniest month: | August | 6.6hrs |
| Coldest month: | January | 4.3°C 39.7°F |
| Wettest month: | June | 84mm 3.3ins |
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