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Bonn — weather in September

19.7°C Daytime temperatures 11.9°C Night temperatures 12 Sunny days 11.7-13.5 Sun (hours) 3 Rainy days 43.7 mm Precipitation 0°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 32°C — 5 September 2022.
The maximum night temperature 20°C — 15 September 2016.
The minimum daily temperature 10.5°C — 27 September 2022.
The minimum night temperature 4°C — 23 September 2014.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 75 mm — July. Minimum precipitation 34.5 mm — February.
Wind speed, km / h
Maximum wind speed 13.5 km / h — February. Minimum wind speed 9.4 km / h — September.
Number of hours of sunshine
The maximum number of hours of sunshine per day 9.4 h. — July. The minimum number of hours of sunshine per day 3 h. — December.
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