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Switzerland weather

Weather in Zermatt for September 2026

Your guide to Zermatt weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Giallo Temporali Allerta - See hour by hour.

    • Snow Forecast ❄️

  • With an average of 2 snowy days, Zermatt usually enjoys a light touch of snow in September.
    According to Zermatt snow forecast for September 2026, no snow is expected in the next 2 weeks.

    • Temperatures

  • So far, September 2026 in Zermatt is slightly warmer than the historical average by 0.9 °C.

  • Expect cooler weather in the next days in Zermatt with the forecast suggesting a temperature of 8 °C, lower than the historical average.

  • In general, the average temperature in Zermatt at the beginning of September is 11.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 4.9 °C by the end of September.

    • Rain 🌧️

  • Zermatt in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 139.6 mm.

Average dry days
12
Dry days
Average rainy days
16
Rainy days
Average snowy days
2
Snow days
Average temperatures
8°/2°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Zermatt Weather September

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

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
 11° /2° 10.4 mm 0 cm
2 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 10° /3° 2.6 mm 0 cm
3 Sept. Moderate rain at times
Moderate rain at times
 12° /3° 1.7 mm 0 cm
4 Sept. Moderate rain at times
Moderate rain at times
 12° /4° 3.7 mm 0 cm
5 Sept. Moderate rain at times
Moderate rain at times
 11° /3° 11.3 mm 0 cm
6 Sept. Patchy rain possible
Patchy rain possible
 13° /4° 1.6 mm 0 cm
7 Sept. Partly cloudy
Partly cloudy
 13° /4° 2.3 mm 0 cm
8 Sept. Patchy rain possible
Patchy rain possible
 12° /4° 3.7 mm 0 cm
9 Sept. Patchy rain possible
Patchy rain possible
 9° /3° 5.4 mm 0 cm
10 Sept. Patchy rain possible
Patchy rain possible
 10° /3° 2.8 mm 0 cm
11 Sept. Patchy rain possible
Patchy rain possible
 11° /2° 1.9 mm 0 cm
12 Sept. Patchy rain possible
Patchy rain possible
 10° /1° 1 mm 0.4 cm
13 Sept. Overcast
Overcast
 12° /2° 0 mm 0 cm
14 Sept. Sunny
Sunny
 11° /2° 0 mm 0 cm
15 Sept. Sunny
Sunny
 13° /3° 0.1 mm 0 cm
16 Sept. Sunny
Sunny
 11° /3° 9.3 mm 0 cm
17 Sept. Light rain shower
Light rain shower
 7° /2° 7.6 mm 0 cm
18 Sept. Patchy rain possible
Patchy rain possible
 6° /1° 0.1 mm 0 cm
19 Sept. Overcast
Overcast
 9° /0° 0 mm 0 cm
20 Sept. Overcast
Overcast
 10° /1° 0 mm 0 cm
21 Sept. Overcast
Overcast
 11° /2° 0 mm 0 cm
22 Sept. Sunny
Sunny
 10° /2° 0 mm 0 cm
23 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 2° /-1° 67.8 mm 0 cm
24 Sept. Fog
Fog
 4° /0° 1.1 mm 0 cm
25 Sept. Fog
Fog
 3° /0° 0.8 mm 0 cm
26 Sept. Fog
Fog
 3° /-1° 8.4 mm 0 cm
27 Sept. Cloudy
Cloudy
 6° /-1° 2.1 mm 0.6 cm
28 Sept. Patchy rain possible
Patchy rain possible
 6° /-2° 1.6 mm 0.3 cm
29 Sept. Patchy rain possible
Patchy rain possible
 6° /-2° 1.6 mm 0 cm
30 Sept. Partly cloudy
Partly cloudy
 6° /-1° 2.6 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 8° and colder nights, dipping below 2°.

How much rainfall should be expected in Zermatt during September?
Significant rainfall exceeding 139.6 mm is expected in Zermatt during September, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Zermatt in September 2026?
Zermatt experiences an average snowfall of 4 cm during September, occurring over 2 days.

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 2026

Track daily snowfall levels and discover Zermatt’s snowy potential this September ❄️
On average, Zermatt sees 2 snowy days during September, with approximately 4 cm of total snowfall.

September rainfall patterns in Zermatt

Explore the daily rainfall trends and prepare for Zermatts September weather 💧
Typically, Zermatt has 16 rainy days in September with a total of 139.6 mm of rainfall.

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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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