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Aachen — weather in September

18°C Daytime temperatures 11.4°C Night temperatures 11 Sunny days 11.7-13.5 Sun (hours) 3 Rainy days 39.6 mm Precipitation 0°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 30.3°C — 5 September 2013.
The maximum night temperature 21.5°C — 14 September 2016.
The minimum daily temperature 8.5°C — 27 September 2022.
The minimum night temperature 4°C — 25 September 2018.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 79 mm — July. Minimum precipitation 33.5 mm — November.
Wind speed, km / h
Maximum wind speed 19 km / h — February. Minimum wind speed 12 km / h — August.
Number of hours of sunshine
The maximum number of hours of sunshine per day 8.9 h. — July. The minimum number of hours of sunshine per day 3.1 h. — January.
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