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Switzerland weather

Weather in Montreux for September 2026

Your guide to Montreux weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Montreux has been nearly identical to the historical average, with a temperature of 20.5 °C (showing only a slight deviation of 0.3 °C).

  • Expect cooler weather in the next days in Montreux with the forecast suggesting a temperature of 17.7 °C, lower than the historical average.

  • In general, the average temperature in Montreux at the beginning of September is 21.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.4 °C by the end of September.

    • Rain 🌧️

  • Montreux experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 181.9 mm.

Average dry days
4
Dry days
Average rainy days
26
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/7°
Temperatures
Average wind speed
8 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Montreux Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
19°
2
Sunny
19°
3
Sunny
21°
4
Sunny
22°
5
Sunny
20°
6
Sunny
23°
7
Sunny
24°
8
Sunny
22°
9
Moderate or heavy rain shower
17°
10
Patchy rain possible
17°
11
Sunny
18°
12
Thundery outbreaks possible
15°
13
Overcast
19°
14
Sunny
19°
15
Sunny
21°
16
Sunny
19°
17
Overcast
14°
18
Overcast
12°
19
Sunny
17°
20
Overcast
17°
21
Sunny
19°
22
Sunny
16°
23
Sunny
19°
24
Sunny
21°
25
Sunny
22°
26
Light rain shower
13°
27
Sunny
14°
28
Sunny
13°
29
Sunny
16°
30
Mist
16°

Temperatures trend during September in Montreux

See the weather trend as well as the moving average line

September weather in Montreux day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 19° /9° 11.8 mm 5
2 Sept. Sunny
Sunny
 19° /9° 4.1 mm 4
3 Sept. Sunny
Sunny
 21° /10° 3.2 mm 6
4 Sept. Sunny
Sunny
 22° /11° 10.5 mm 5
5 Sept. Sunny
Sunny
 20° /10° 3.5 mm 5
6 Sept. Sunny
Sunny
 23° /9° 0 mm 6
7 Sept. Sunny
Sunny
 24° /11° 0.2 mm 6
8 Sept. Sunny
Sunny
 22° /12° 6 mm 5
9 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /10° 16.7 mm 3
10 Sept. Patchy rain possible
Patchy rain possible
 17° /9° 1.6 mm 4
11 Sept. Sunny
Sunny
 18° /8° 4.3 mm 5
12 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 15° /6° 3.6 mm 3
13 Sept. Overcast
Overcast
 19° /9° 0 mm 5.6
14 Sept. Sunny
Sunny
 19° /10° 0 mm 5.9
15 Sept. Sunny
Sunny
 21° /11° 0 mm 5.9
16 Sept. Sunny
Sunny
 19° /10° 17.5 mm 5.5
17 Sept. Overcast
Overcast
 14° /6° 4.1 mm 4
18 Sept. Overcast
Overcast
 12° /6° 0 mm 4
19 Sept. Sunny
Sunny
 17° /6° 0 mm 5
20 Sept. Overcast
Overcast
 17° /8° 0 mm 5
21 Sept. Sunny
Sunny
 19° /9° 0 mm 5
22 Sept. Sunny
Sunny
 16° /9° 0 mm 5
23 Sept. Sunny
Sunny
 19° /8° 0 mm 5
24 Sept. Sunny
Sunny
 21° /10° 0 mm 6
25 Sept. Sunny
Sunny
 22° /11° 0 mm 6
26 Sept. Light rain shower
Light rain shower
 13° /8° 13.4 mm 3
27 Sept. Sunny
Sunny
 14° /5° 3.7 mm 4
28 Sept. Sunny
Sunny
 13° /4° 4.4 mm 4
29 Sept. Sunny
Sunny
 16° /5° 0 mm 4
30 Sept. Mist
Mist
 16° /6° 2 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.
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Montreux in September - FAQ

What are the expected maximum and minimum temperatures in Montreux during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 7°. 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 181.9 mm is expected in Montreux during September, occurring over more than 26 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 💧
Typically, Montreux has 26 rainy days in September with a total of 181.9 mm of rainfall.

UV exposure in Montreux during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Get accurate weather forecasts for Montreux, located at latitude 46.433 and longitude 6.911. Stay updated with localized weather information tailored for Montreux.

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