Ostermundigen
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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.

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).

Ostermundigen Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Ostermundigen - and find the best time to visit.

Best Places in Switzerland in September

Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Ostermundigen 3-Day Forecast

More climate data for Ostermundigen

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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