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Region Surselva (Laax)
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Switzerland weather

Weather in Region Surselva for September 2026

Your guide to Region Surselva weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Region Surselva at the beginning of September is 17.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11 °C by the end of September.

    • Rain 🌧️

  • Region Surselva in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 182.2 mm.

Average dry days
13
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/3°
Temperatures
Average wind speed
8 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Region Surselva Weather September

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

Temperatures trend during September in Region Surselva

See the weather trend as well as the moving average line

September weather in Region Surselva day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Heavy rain
Heavy rain
 13° /2° 46 mm 3
2 Sept. Light rain shower
Light rain shower
 11° /1° 5.4 mm 3
3 Sept. Partly cloudy
Partly cloudy
 20° /0° 0 mm 7
4 Sept. Patchy rain possible
Patchy rain possible
 22° /5° 1 mm 7
5 Sept. Light rain shower
Light rain shower
 11° /0° 23.6 mm 4
6 Sept. Overcast
Overcast
 21° /0° 0 mm 7
7 Sept. Partly cloudy
Partly cloudy
 23° /3° 0 mm 7
8 Sept. Light rain shower
Light rain shower
 19° /6° 2 mm 6
9 Sept. Light rain shower
Light rain shower
 16° /3° 5.5 mm 5
10 Sept. Light rain shower
Light rain shower
 12° /4° 6.5 mm 3
11 Sept. Patchy rain possible
Patchy rain possible
 17° /1° 0.3 mm 3
12 Sept. Light drizzle
Light drizzle
 10° /4° 0.4 mm 2
13 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 17° /2° 12.6 mm 4
14 Sept. Light drizzle
Light drizzle
 16° /3° 2.6 mm 3
15 Sept. Patchy light drizzle
Patchy light drizzle
 21° /4° 5 mm 5
16 Sept. Fog
Fog
 12° /6° 2.3 mm 2
17 Sept. Partly cloudy
Partly cloudy
 12° /0° 0 mm 5
18 Sept. Sunny
Sunny
 23° /4° 0 mm 5
19 Sept. Sunny
Sunny
 27° /7° 0 mm 5
20 Sept. Patchy rain possible
Patchy rain possible
 24° /8° 0 mm 5
21 Sept. Patchy rain possible
Patchy rain possible
 22° /7° 0.2 mm 5
22 Sept. Moderate rain
Moderate rain
 12° /8° 36.8 mm 1
23 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 16° /8° 2.9 mm 2
24 Sept. Light rain shower
Light rain shower
 9° /3° 18.8 mm 1
25 Sept. Light rain shower
Light rain shower
 8° /5° 2.2 mm 1
26 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 12° /1° 1 mm 2
27 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 9° /0° 6.9 mm 1
28 Sept. Patchy rain possible
Patchy rain possible
 14° /-2° 0 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 14° /1° 0 mm 3
30 Sept. Patchy rain possible
Patchy rain possible
 11° /0° 0.2 mm 2
Next
Important Notice
Our weather forecast for Region Surselva 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 Region Surselva forecast closer to your planned date for the most up-to-date weather information.
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Region Surselva in September - FAQ

What are the expected maximum and minimum temperatures in Region Surselva during September?
During September, expect a variety of temperatures with highs around 16° and lows near 3°, suitable for diverse activities and preferences.

How much rainfall should be expected in Region Surselva during September?
Significant rainfall exceeding 182.2 mm is expected in Region Surselva during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.

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

September rainfall patterns in Region Surselva

Explore the daily rainfall trends and prepare for Region Surselvas September weather 💧
Typically, Region Surselva has 17 rainy days in September with a total of 182.2 mm of rainfall.

UV exposure in Region Surselva during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Region Surselva?

Get accurate weather forecasts for Region Surselva, located at latitude 46.805 and longitude 9.258. Stay updated with localized weather information tailored for Region Surselva.

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