Weather in Siegen in September
How warm is it in Siegen in September?
In September the typical daytime high in Siegen is 16.0 °C on average, from 18.2 °C at the start to 13.1 °C at the end of the month.
That is 3.9 °C cooler than in August and 5.1 °C warmer than in October.
The last 10 years were 1.5 °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 Altastenberg (47 km), Geisenheim (99 km) and Maastricht (159 km); nearer ones count more.