Normal weather for Appenzell in September

It's cool in September in Appenzell with an average temperature of 13°C. Temperatures this month range from a low of 10°C to a high of 16°C. At night, you can expect temperatures between 4°C and 9°C.

In September, there is an average of 169 mm of precipitation, spread over 20 days. Of the total precipitation, about 18 cm falls as snow in September. The wind speed is around 4 Bft, mostly coming from the Southwest.

Appenzell in September		New York
Average Temperature	13°C	27°C
High Temp	16°C	31°C
Low Temp	10°C	21°C
Total Precipitation	169 mm	57 mm
Rainy Days	20 days	9 days
Total Snowfall	18 cm	0 cm
Snowy Days	9 days	0 days

Start of September

The month of September starts in Appenzell with cool temps, averaging around 15°C during the day and nights around 8°C. There are plenty of days with a good chance of precipitation.

With the temperature difference between day and night, it’s smart to wear layers. During the day, choose a light jacket, sweater or hoodie, and long pants. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.

Mid September

By mid-September, daytime temps stay steady at around 15°C, with nights around 8°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

Since it cools down at night, it’s a good idea to wear layers. During the day, choose a light jacket, sweater or hoodie, and long pants. In the evening and morning, go for a warm jacket, sweater or hoodie, and long pants.

End of September

By the end of September, the average daytime temperature in Appenzell is around 12°C, while nighttime temps are about 6°C. There’s a significant chance of many days with precipitation.

Because temperatures drop in the evening, wearing layers is recommended. During the day, go for a warm jacket, sweater or hoodie, and long pants. For the evening and morning, we recommend a thick jacket, sweater, and long pants.

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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.

Is September a good time to visit Appenzell?

Looking for sun? September isn’t a good month to be in Appenzell. There’s too much chance of rain this month.

Temperature records for Appenzell in September

Check out the climate of Appenzell for all months and discover the best travel time

Curious about the weather in other parts of Switzerland? Check out the climate and weather for spots like Zurich, Geneva, Valais, or explore other destinations in Switzerland.

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Daily Temperature in September in Appenzell

This chart shows the average daily high and low temperatures in September for Appenzell, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Precipitation in September in Appenzell

The chart below shows the average daily precipitation in September for Appenzell, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 20 days of precipitation in Appenzell.

Daily Precipitation in September in Appenzell

Daily Snowfall in September in Appenzell

This chart shows the average daily snowfall in September in Appenzell, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in September.

Daily UV Index in September in Appenzell

This chart shows the average daily UV index in September in Appenzell, 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.

Temperature in September in Appenzell Over the Years

This chart shows the average temperature in September in Appenzell, measured in degrees Celsius, over the past few years.

Total Precipitation in September in Appenzell Over the Years

This chart shows the average precipitation in September in Appenzell, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Snowfall in September in Appenzell per year

This chart shows the average snowfall in September in Appenzell, measured in centimeters, over the past few years.

Snowfall in September in Appenzell over the past years

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Daily Climate in September for Appenzell

Click on any day in September to get detailed info about the usual weather on that day in Appenzell. Check out the historical temperatures and precipitation over the past 10 years on this day.

Average Weather in Appenzell by Month

Click on a month below to see detailed weather info for Appenzell. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.