Weather in Cologne in August 2025
Average weather
Average temperature in Cologne in August
Going from a maximum of +31°C during the day to a minimum of +12°C during the night, the temperature in August averages around +24°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +21°C to +21°C.
Is Cologne warm or cold in August?
Cologne is typically warm in August.
Maximum temperatures go down compared to the previous month from +24°C to +23°C. The minimum temperature also goes up from +14°C to +14°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is one of the warmest months in Cologne, here is the comparison with other months:
Climate in Cologne in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +24°C | +23°C | +20°C | ||||
| Min. temperature | ||||||
| +5°C | +6°C | 0°C | ||||
| Max. temperature | ||||||
| +41°C | +38°C | +33°C | ||||
| Rainfall | ||||||
| 75 mm | 74 mm | 58 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 70% | 72% | 77% | ||||
| Air pressure | ||||||
| 1015 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 6 | 6 | 6 | ||||
| Cloudy days | ||||||
| 5 | 6 | 8 | ||||
| Rainy days | ||||||
| 16 | 16 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. It’s getting colder in August. From +24°C in the day, the average maximum temperature lowers to +23°C. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 75 mm to 74 mm. Humidity rises from 70% to 72%. The average wind speed doesn’t change much during August, staying around 2 m/s. The amount of sunny days stay about the same, averaging 6 sunny days during the month.
Next month (September) brings a further decline in the weather.
Wind
The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Cologne is gradually decreasing during August, going from 5 m/s to 3 m/s over the course of the month.
Rain
How was the weather last August in Cologne?
Climate Change over Years
The climate in Cologne in August has not changed much over the last 43 years.
The average temperature was the lowest in 1985 (+12°C) and the highest in 2022 (+17°C). The driest year was 2018 with only 570 mm of rainfall, and the wettest year was 2023 with 1162 mm.
FAQ
Is August a good time to visit Cologne?
Can you sunbathe in Cologne in August?
Is Cologne rainy in August?
Is it sunny in Cologne in August?
Other cities in Germany
Monthly weather in Cologne
Source of the data
For this page, we’ve looked at the typical weather in Cologne, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.