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Weather in Grindelwald for September 2026

Your guide to Grindelwald weather in September - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Grindelwald during September is quite rare, with fewer than 2 snowy days on average.
    According to Grindelwald snow forecast for September 2026, no snow is expected until the end of the month.

    • Temperatures

  • Until now, September 2026 in Grindelwald is cooler than usual, with temperatures averaging 13.5 °C, this is 2.8 °C below the typical seasonal average.

  • The forecast for the next days in Grindelwald predicts temperatures to be around 9 °C, close to the historical average.

  • In general, the average temperature in Grindelwald at the beginning of September is 17.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 8.3 °C by the end of September.

    • Rain 🌧️

  • Grindelwald in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 141.6 mm.

Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
1
Snow days
Average temperatures
15°/5°
Temperatures
Average wind speed
8 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Grindelwald Weather September

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

Temperatures trend during September in Grindelwald

See the weather trend as well as the moving average line

September weather in Grindelwald day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
1 Sept. Sunny
Sunny
 16° /4° 5.3 mm 0 cm
2 Sept. Patchy rain possible
Patchy rain possible
 17° /5° 4.2 mm 0 cm
3 Sept. Sunny
Sunny
 17° /5° 1.6 mm 0 cm
4 Sept. Patchy rain possible
Patchy rain possible
 18° /6° 6 mm 0 cm
5 Sept. Cloudy
Cloudy
 17° /6° 3.9 mm 0 cm
6 Sept. Sunny
Sunny
 19° /6° 0.8 mm 0 cm
7 Sept. Sunny
Sunny
 20° /7° 1.6 mm 0 cm
8 Sept. Sunny
Sunny
 18° /7° 5.5 mm 0 cm
9 Sept. Light rain shower
Light rain shower
 15° /7° 10 mm 0 cm
10 Sept. Patchy rain possible
Patchy rain possible
 15° /5° 3.1 mm 0 cm
11 Sept. Moderate rain at times
Moderate rain at times
 16° /5° 1.9 mm 0 cm
12 Sept. Patchy rain possible
Patchy rain possible
 15° /4° 3 mm 0.2 cm
13 Sept. Patchy rain possible
Patchy rain possible
 15° /6° 8 mm 2 cm
14 Sept. Heavy rain at times
Heavy rain at times
 14° /6° 4.2 mm 0.3 cm
15 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /6° 5.5 mm 0 cm
16 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /4° 9.1 mm 0 cm
17 Sept. Patchy rain possible
Patchy rain possible
 13° /4° 2.5 mm 0 cm
18 Sept. Overcast
Overcast
 8° /0° 0.1 mm 0 cm
19 Sept. Sunny
Sunny
 10° /0° 0.1 mm 0 cm
20 Sept. Overcast
Overcast
 11° /3° 0.1 mm 0 cm
21 Sept. Overcast
Overcast
 9° /3° 0 mm 0 cm
22 Sept. Sunny
Sunny
 11° /2° 0 mm 0 cm
23 Sept. Sunny
Sunny
 10° /2° 0 mm 0 cm
24 Sept. Sunny
Sunny
 10° /2° 0 mm 0 cm
25 Sept. Patchy rain possible
Patchy rain possible
 3° /0° 16.3 mm 0 cm
26 Sept. Sunny
Sunny
 10° /1° 0 mm 0 cm
27 Sept. Sunny
Sunny
 10° /3° 0 mm 0 cm
28 Sept. Sunny
Sunny
 10° /2° 0 mm 0 cm
29 Sept. Overcast
Overcast
 10° /2° 0.4 mm 0 cm
30 Sept. Light rain shower
Light rain shower
 5° /3° 23.7 mm 0 cm
Next
Important Notice
Our weather forecast for Grindelwald 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 Grindelwald forecast closer to your planned date for the most up-to-date weather information.
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Grindelwald in September - FAQ

What are the expected maximum and minimum temperatures in Grindelwald during September?
During September, expect a variety of temperatures with highs around 15° and lows near 5°, suitable for diverse activities and preferences.

How much rainfall should be expected in Grindelwald during September?
Significant rainfall exceeding 141.6 mm is expected in Grindelwald during September, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Grindelwald in September 2026?
Grindelwald typically sees 3.4 cm of snowfall during September.

What are the typical wind conditions in Grindelwald during September?
The average wind speed in Grindelwald during September is 8 km/h, suggesting breezy to windy conditions, depending on your activities.

Grindelwald snow forecast September 2026

Track daily snowfall levels and discover Grindelwald’s snowy potential this September ❄️
On average, Grindelwald sees 1 snowy days during September, with approximately 3.4 cm of total snowfall.

September rainfall patterns in Grindelwald

Explore the daily rainfall trends and prepare for Grindelwalds September weather 💧
Typically, Grindelwald has 16 rainy days in September with a total of 141.6 mm of rainfall.

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Location coordinates Where is Grindelwald?

Get accurate weather forecasts for Grindelwald, located at latitude 46.624 and longitude 8.036. Stay updated with localized weather information tailored for Grindelwald.

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