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Arosa — weather in September

13.2°C Daytime temperatures 4.2°C Night temperatures 14 Sunny days 11.7-13.3 Sun (hours) 4 Rainy days 72.8 mm Precipitation 0°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 23.3°C — 1 September 2015.
The maximum night temperature 10.5°C — 8 September 2022.
The minimum daily temperature -1°C — 25 September 2020.
The minimum night temperature -5°C — 27 September 2020.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 126.1 mm — August. Minimum precipitation 42.3 mm — February.
Wind speed, km / h
Maximum wind speed 8 km / h — December. Minimum wind speed 6.6 km / h — August.
Number of hours of sunshine
The maximum number of hours of sunshine per day 9.9 h. — June. The minimum number of hours of sunshine per day 4.9 h. — January.
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