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St Moritz — weather in September

11°C Daytime temperatures 0.8°C Night temperatures 9 Sunny days 11.7-13.3 Sun (hours) 7 Rainy days 117.6 mm Precipitation 0°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 19°C — 4 September 2020.
The maximum night temperature 8.5°C — 6 September 2020.
The minimum daily temperature -1°C — 26 September 2020.
The minimum night temperature -9°C — 15 September 2017.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 204.4 mm — August. Minimum precipitation 60.8 mm — January.
Wind speed, km / h
Maximum wind speed 9.9 km / h — January. Minimum wind speed 7.8 km / h — August.
Number of hours of sunshine
The maximum number of hours of sunshine per day 8.2 h. — July. The minimum number of hours of sunshine per day 3.6 h. — January.
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