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Weather in Zermatt for September 2025

Your guide to Zermatt weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Zermatt at the beginning of September is 12.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.4 °C by the end of September.

    • Rain 🌧️

  • Zermatt in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 502.5 mm.

Average dry days
12
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/-2°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Zermatt Weather September

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

Temperatures trend during September in Zermatt

See the weather trend as well as the moving average line

September weather in Zermatt day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
1 Sept. Patchy rain possible
Patchy rain possible
 12° /3° 3.7 mm 0 cm
2 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 11° /4° 2.9 mm 0 cm
3 Sept. Moderate rain at times
Moderate rain at times
 12° /4° 2.6 mm 0 cm
4 Sept. Moderate rain at times
Moderate rain at times
 12° /4° 2.8 mm 0 cm
5 Sept. Moderate rain at times
Moderate rain at times
 12° /4° 13.7 mm 0 cm
6 Sept. Patchy rain possible
Patchy rain possible
 13° /4° 2.2 mm 0 cm
7 Sept. Partly cloudy
Partly cloudy
 13° /4° 3 mm 0 cm
8 Sept. Patchy rain possible
Patchy rain possible
 12° /5° 4.3 mm 0 cm
9 Sept. Patchy rain possible
Patchy rain possible
 10° /3° 5.5 mm 0 cm
10 Sept. Patchy rain possible
Patchy rain possible
 11° /3° 2.1 mm 0 cm
11 Sept. Patchy rain possible
Patchy rain possible
 12° /3° 2.9 mm 0 cm
12 Sept. Patchy rain possible
Patchy rain possible
 10° /2° 1.2 mm 0.5 cm
13 Sept. Patchy rain possible
Patchy rain possible
 8° /2° 10.9 mm 0.9 cm
14 Sept. Patchy rain possible
Patchy rain possible
 8° /2° 2.4 mm 0.1 cm
15 Sept. Heavy rain at times
Heavy rain at times
 10° /3° 6 mm 0 cm
16 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 8° /3° 5 mm 0 cm
17 Sept. Overcast
Overcast
 8° /0° 1.3 mm 0 cm
18 Sept. Moderate rain at times
Moderate rain at times
 8° /0° 6 mm 0 cm
19 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /-1° 14 mm 0 cm
20 Sept. Moderate rain at times
Moderate rain at times
 6° /-1° 1.6 mm 0 cm
21 Sept. Partly cloudy
Partly cloudy
 6° /0° 2.2 mm 0 cm
22 Sept. Overcast
Overcast
 7° /0° 3.8 mm 0 cm
23 Sept. Sunny
Sunny
 6° /0° 5.5 mm 0.1 cm
24 Sept. Sunny
Sunny
 7° /-1° 3.3 mm 0 cm
25 Sept. Moderate rain at times
Moderate rain at times
 8° /0° 1.9 mm 0 cm
26 Sept. Moderate rain at times
Moderate rain at times
 8° /1° 5.6 mm 0 cm
27 Sept. Cloudy
Cloudy
 8° /0° 2.2 mm 0.5 cm
28 Sept. Patchy rain possible
Patchy rain possible
 7° /0° 2 mm 0.4 cm
29 Sept. Patchy rain possible
Patchy rain possible
 7° /-1° 2 mm 0 cm
30 Sept. Partly cloudy
Partly cloudy
 7° /0° 3.2 mm 0.2 cm
Next
Important Notice
Our weather forecast for Zermatt 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 Zermatt forecast closer to your planned date for the most up-to-date weather information.
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Zermatt in September - FAQ

What are the expected maximum and minimum temperatures in Zermatt during September?
Prepare for cooler days with highs just around 13° and colder nights, dipping below -2°.
How much rainfall should be expected in Zermatt during September?
Significant rainfall exceeding 502.5 mm is expected in Zermatt during September, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Zermatt in September 2025?
Zermatt typically sees 10.3 cm of snowfall during September.
What are the typical wind conditions in Zermatt during September?
The average wind speed in Zermatt during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

Zermatt snow forecast September 2025

Track daily snowfall levels and discover Zermatt’s snowy potential this September ❄️

September rainfall patterns in Zermatt

Explore the daily rainfall trends and prepare for Zermatts September weather 💧

Quick links

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Location coordinates Where is Zermatt?

Get accurate weather forecasts for Zermatt, located at latitude 46.02 and longitude 7.749. Stay updated with localized weather information tailored for Zermatt.

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