Seewen Weather in September

Seewen in September sees moderate daytime temperatures of 17°C (63°F) and nighttime lows of 8°C (46°F). As part of the rainy season, showers are frequent and often heavy. Budget around 175 mm (6.9 in) of rainfall for the month.

Rainfall in Seewen in September

Seewen is in the rainy season in September, with rain on around 14 days and an average of 175 mm (6.9 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.

Temperature in Seewen in September

Seewen in September gets highs of 17°C (63°F) during the day and drops to 8°C (46°F) at night. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Seewen in September

The month brings about 138 hours of sunlight, offering a comfortable mix of sun and rainy moments.

Wind Speed in Seewen in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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• January
• February
• March
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• May
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• August

• September
• October
• November
• December

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

Seewen Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 46%  

Precipitation 175 mm (6.9 in)  

Rainy days 14 days  

Humidity 78% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 138 hours *  

Percentage Sunshine 52% *  

* Data from: Altdorf, Switzerland (18 KM, 11 Miles).

What to Wear in Seewen 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! Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Seewen in September

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

Swimming

6/10

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 Seewen's climate page.

More climate data for Seewen

Temperature Rainfall Sunshine Humidity Wind Speed

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