Stoos Weather in September

Stoos in September sees moderate temperatures, with highs around 16°C (61°F) and overnight lows of 7°C (45°F). With the rainy season in full effect, expect around 180 mm (7.1 in) of rainfall and regular showers throughout the month.

Rainfall in Stoos in September

Stoos is in the rainy season in September, with rain on around 14 days and an average of 180 mm (7.1 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in Stoos in September

If you're visiting Stoos in September, expect highs of 16°C (61°F) and overnight lows around 7°C (45°F). Conditions are often most pleasant around the middle of the day. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Stoos in September

The month experiences a moderate amount of sunlight, with 138 hours of sunshine. This provides a nice balance between sunshine and rain.

Wind Speed in Stoos in September

Wind speeds average 2 m/s (4 knots) during September. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.

If your ideal day consists of dry skies and pleasant temperatures, July, August and September typically offer the best circumstances for Stoos.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• October
• November
• December

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

Stoos Temperature in September

Min Temperature 7°C (45°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 48%  

Precipitation 180 mm (7.1 in)  

Rainy days 14 days  

Humidity 78% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 138 hours *  

Percentage Sunshine 52% *  

* Data from: Altdorf, Switzerland (12 KM, 7 Miles).

What to Wear in Stoos in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Stoos 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 Stoos's climate page.

More climate data for Stoos

Temperature Rainfall Sunshine Humidity Wind Speed

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