Mountain air

Crans-Montana weather in September

Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.

61

Holiday weather in September

Good

Best time to visit: June – September

Best for skiing: November – April

What is the weather like in Crans-Montana in September?

In September, Crans-Montana is cool: daytime highs average 14 °C, and nights cool down to about 4 °C. The sun shines for around 7 hours a day. It rains often – on about 14 days, adding up to 127 mm. Snow falls on about 2 days. All in all, September is a good month for a holiday in Crans-Montana.

September compared

How the weather changes from August to October. Tap a month to open it.

AugustAugSeptemberSepOctoberOct
Score686139
Day18°14°10°
Night8°4°0°
Sun7 h7 h5 h
Rain days171413

More details for September

Daylight
12 h 38 min07:07 – 19:44
UV index
5 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
6 km/haverage daily peakAll months
Cloud cover
66 %on averageAll months
Hot days
0 days30 °C or more
Snow days
2 days1 cm or more of fresh snowAll months
Time zone
UTC+2Europe/Zurich

How the score comes together

  • Temperatureweight 50 %81 %
  • Sunshineweight 20 %62 %
  • Few rainy daysweight 30 %26 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in September

  • Sunscreen
  • A jumper for the evenings
  • Rain jacket or umbrella

Crans-Montana in September: quick answers

Is Crans-Montana hot in September?

No. In September, Crans-Montana is cool: daytime highs average 14 °C and nights drop to about 4 °C.

Does it rain much in Crans-Montana in September?

It rains often – on about 14 days, adding up to 127 mm.

Crans-Montana month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences