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The weather in September in Switzerland
It's pleasantly warm in September in Switzerland with an average temperature of 19°C. Temperatures this month range from a low of 17°C to a high of 23°C. At night, you can expect temperatures between 7°C and 13°C.
Looking for great weather? September is a good time to be in Switzerland. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Switzerland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 28°C in 2023, Switzerland reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 7°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 17°C.
Rainfall amount
In September, there is an average of 74 mm of precipitation, spread over 10 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in September for Switzerland
Click on any day in September to get detailed info about the usual weather on that day in Switzerland. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Switzerland | New York | |
|---|---|---|
| Average temperature | 19°C | 27°C |
| Max. temperature | 23°C | 31°C |
| Min. temperature | 7°C | -5°C |
| Total precipitation | 74 mm | 57 mm |
| Rainy days | 10 days | 9 days |
Start of September
The month of September starts in Switzerland with mild temps, averaging around 21°C during the day and nights around 12°C.
Mid September
By mid-September, daytime temps drop to around 20°C, with nights around 12°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Switzerland is around 18°C, while nighttime temps are about 9°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Switzerland for all months and discover the best travel time
The climate in Switzerland is based on weather data from Bern. Other places, like Zurich, Geneva or Valais, might have different weather. You can check out all destinations in Switzerland to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in September in Switzerland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Switzerland
Temperature in September in Switzerland over the years
Precipitation charts
These charts show the average amount of precipitation in September in Switzerland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Switzerland
Total precipitation in September in Switzerland over the years
Daily UV index in September in Switzerland
This chart shows the average daily UV index in September in Switzerland, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Switzerland
The weather in September in Switzerland is rated 4 out of 5 stars by 1 visitor. Have you been to Switzerland? Share your weather experience to help other visitors.
Write your own review
September in Switzerland was wondrous. Fresh, clear days with pleasant sunshine. The weather was surprisingly mild, not too cold, not too hot. Ideal for outdoor activities. A few rain showers but generally good weather.— This text is automatically translated to English
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Average weather in Switzerland by month
Click on a month below to see detailed weather info for Switzerland. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.