Trondheim · Norway
Weather in Trondheim in September
In September the typical daytime high in Trondheim is 14.4 °C on average, from 16.6 °C at the start to 11.9 °C at the end of the month.
The last 10 years were 2.0 °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.
Measured at the weather station Trondheim - Voll, 4 km away.