Weather in Cologne in September
How warm is it in Cologne in September?
In September the typical daytime high in Cologne is 18.7 °C on average, from 20.9 °C at the start to 15.9 °C at the end of the month.
That is 3.7 °C cooler than in August and 5.1 °C warmer than in October.
The last 10 years were 1.9 °C warmer than more than 40 years ago.
Click a day for more: afternoon and night, the usual range, records and how fast it is warming.
The average of the weather stations Maastricht (83 km), Altastenberg (110 km) and Geisenheim (127 km); nearer ones count more.