Schwyz Weather in September

With daytime temperatures of 17°C (63°F) and nighttime lows of 8°C (46°F), September in Schwyz brings moderate temperatures during the day. Do keep in mind that September is part of the rainy season, with frequent and often heavy rainfall.

Rainfall in Schwyz in September

Schwyz is in the rainy season in September, with rain on around 14 days and an average of 177 mm (7 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.

Temperature in Schwyz in September

In September, Schwyz sees moderate temperatures, with highs of 17°C (63°F). Nights drop to around 8°C (46°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Schwyz in September

You can expect a moderate amount of sunlight, with approximately 138 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

Wind Speed in Schwyz in September

Average wind conditions reach 2 m/s (4 knots) in September. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Schwyz.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Switzerland, check out our Schwyz's climate page.

Schwyz Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 47%  

Precipitation 177 mm (7 in)  

Rainy days 14 days  

Humidity 78% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 138 hours *  

Percentage Sunshine 52% *  

* Data from: Altdorf, Switzerland (17 KM, 10 Miles).

What to Wear in Schwyz in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Schwyz in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Switzerland, check out our Schwyz's climate page.

More climate data for Schwyz

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Schwyz climate overview or explore weather in Switzerland.