Ostermundigen Weather in September

September in Ostermundigen averages 20°C (68°F) during the day and 10°C (50°F) at night. Quite a bit of rainfall is typical this month, with around 105 mm (4.1 in) on average. An umbrella is a good idea.

Rainfall in Ostermundigen in September

Historically, the month has about 13 days of rain, averaging 105 mm (4.1 in) in total. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Ostermundigen in September

Daytime temperatures in Ostermundigen reach 20°C (68°F) in September, dropping to 10°C (50°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 10°C (50°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 Ostermundigen in September

The month experiences a moderate amount of sunlight, with 176 hours of sunshine. This provides a nice balance between sunshine and clouds.

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

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

Ostermundigen Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 43%  

Precipitation 105 mm (4.1 in)  

Rainy days 13 days  

Humidity 79% *  

Sunshine 176 hours *  

Percentage Sunshine 49% *  

* Data from: Bern, Switzerland (3 KM, 2 Miles).

What to Wear in Ostermundigen 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Ostermundigen in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

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 Ostermundigen's climate page.

More climate data for Ostermundigen

Temperature Rainfall Sunshine Humidity

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