Crans-Montana Weather in September
Crans-Montana in September averages 15°C (59°F) during the day and 3°C (37°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Crans-Montana in September
Looking at the last 30 years, the data shows about 14 days with rain, averaging 125 mm (4.9 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Crans-Montana in September
If you're visiting Crans-Montana in September, expect highs of 15°C (59°F) and overnight lows around 3°C (37°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to 3°C (37°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Crans-Montana in September
There are approximately 210 hours of sunshine this month, resulting in mostly clear days. Despite the cool temperatures, the sunshine makes it an enjoyable time to be outside.
Wind Speed in Crans-Montana in September
September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Crans-Montana.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Crans-Montana's climate page.
Crans-Montana Temperature in September
Min Temperature
3°C (37°F)
Max Temperature
15°C (59°F)
Chance of Rain
46%
Precipitation
125 mm (4.9 in)
Rainy days
14 days
Humidity
71% *
Windspeed
2 m/s (4 knots) *
Sunshine
210 hours *
Percentage Sunshine
65% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Crans-Montana typically drop from around 19°C (66°F) at the start of September to approximately 16°C (61°F) by the end. Nights are cold, with lows typically ranging from 5°C (41°F) to 9°C (48°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Crans-Montana in September
Browse day-by-day weather records for Crans-Montana spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Crans-Montana historical weather extremes in September
Based on weather observations in Crans-Montana between 1976 and 2025, these are the recorded extremes during September.
- Crans-Montana recorded its highest September temperature of 31°C (88°F) on September 14, 1987.
- Crans-Montana experienced its chilliest September day on September 26, 2020, reaching only 3°C (37°F).
- Nighttime temperatures dropped to -12°C (10°F) on September 29, 1995, marking the coldest September night on record.
Best Places in Switzerland in September
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Crans-Montana in September
The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Crans-Montana in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Crans-Montana's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Crans-Montana climate overview or explore weather in Switzerland.
