Montreux
September
Weather in Montreux for September 2025
Your guide to Montreux weather in September - trends and predictions
Until now, September 2025 in Montreux is cooler than usual, with temperatures averaging 16.2 °C, this is -2.8 °C below the typical seasonal average.
The forecast for the next days in Montreux predicts temperatures to be around 18 °C, close to the historical average.
In general, the average temperature in Montreux at the beginning of September is 20.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.7 °C by the end of September.
The climate of Montreux in September is notably wet, with an average of 11 rainy days, and a total of 399.1 mm of precipitation.
Temperatures
Rain 🌧️
19
Dry days
11
Rainy days
0
Snow days
20°/5°
Temperatures
8 km/h
Avg max wind
78 %
Avg humidity
Montreux Weather September
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Temperatures trend during September in Montreux
See the weather trend as well as the moving average line
September weather in Montreux day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 19° /9° | 15.7 mm | 5 | |
| 2 Sept. | Sunny | 19° /9° | 5.4 mm | 4 | |
| 3 Sept. | Sunny | 22° /10° | 4.3 mm | 6 | |
| 4 Sept. | Sunny | 20° /11° | 14 mm | 5 | |
| 5 Sept. |  Light rain shower | 19° /9° | 4.7 mm | 5 | |
| 6 Sept. | Sunny | 22° /8° | 0 mm | 6 | |
| 7 Sept. | Sunny | 25° /10° | 0.1 mm | 6 | |
| 8 Sept. | Sunny | 21° /11° | 7.6 mm | 5 | |
| 9 Sept. | Patchy rain possible | 17° /10° | 12.3 mm | 4 | |
| 10 Sept. | Sunny | 18° /9° | 2 mm | 4 | |
| 11 Sept. | Sunny | 17° /8° | 5.8 mm | 4 | |
| 12 Sept. |  Thundery outbreaks possible | 15° /6° | 3.6 mm | 3 | |
| 13 Sept. | Light rain shower | 12° /5° | 8.8 mm | 3 | |
| 14 Sept. |  Mist | 13° /5° | 0 mm | 4 | |
| 15 Sept. |  Moderate rain | 21° /10° | 10 mm | 1.4 | |
| 16 Sept. | Patchy rain possible | 12° /8° | 2.7 mm | 0.8 | |
| 17 Sept. | Sunny | 19° /7° | 0 mm | 1 | |
| 18 Sept. | Sunny | 22° /10° | 0 mm | 1.5 | |
| 19 Sept. | Sunny | 24° /10° | 0 mm | 4 | |
| 20 Sept. | Sunny | 24° /11° | 0 mm | 5 | |
| 21 Sept. | Patchy rain possible | 20° /12° | 0.2 mm | 4 | |
| 22 Sept. | Patchy rain possible | 17° /12° | 2.1 mm | 3 | |
| 23 Sept. | Patchy rain possible | 16° /11° | 2.6 mm | 3 | |
| 24 Sept. | Patchy rain possible | 17° /10° | 4 mm | 3 | |
| 25 Sept. | Patchy rain possible | 15° /10° | 2.7 mm | 3 | |
| 26 Sept. | Patchy rain possible | 13° /9° | 4 mm | 3 | |
| 27 Sept. |  Partly cloudy | 19° /7° | 0 mm | 4 | |
| 28 Sept. | Sunny | 12° /6° | 6.6 mm | 4 | |
| 29 Sept. | Sunny | 17° /6° | 0 mm | 5 | |
| 30 Sept. | Mist | 17° /8° | 3.1 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Montreux in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Montreux forecast closer to your planned date for the most up-to-date weather information.
Change Month
Montreux in September - FAQ
What are the expected maximum and minimum temperatures in Montreux during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Montreux during September?
Significant rainfall exceeding 399.1 mm is expected in Montreux during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Montreux during September?
The average wind speed in Montreux during September is 8 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Montreux
Explore the daily rainfall trends and prepare for Montreuxs September weather 💧
UV exposure in Montreux during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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