Average weather for Poss in September
It's pleasantly warm in September in Poss with an average temperature of 19°C. Temperatures this month range from a low of 17°C to a high of 21°C. At night, you can expect temperatures between 9°C and 14°C.
Start of September
The month of September starts in Poss with mild temps, averaging around 21°C during the day and nights around 13°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid September
By mid-September, daytime temps drop to around 20°C, with nights around 13°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Poss is around 18°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
In September, there is an average of 131 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Poss in September |
New York | ||
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19°C | 27°C | |
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21°C | 31°C | |
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17°C | -5°C | |
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131 mm | 57 mm | |
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9 days | 9 days |
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 Poss?
Looking for sun? September isn’t a good month to be in Poss. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 29°C in 2023, Poss reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 8°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 17°C.
Check out the climate of Poss 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.
Daily Temperature in September in Poss
This chart shows the average daily high and low temperatures in September for Poss, 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 Poss
The chart below shows the average daily precipitation in September for Poss, 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 9 days of precipitation in Poss.
Daily UV index in September in Poss
This chart shows the average daily UV index in September in Poss, 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 Poss over the years
This chart shows the average temperature in September in Poss, measured in degrees Celsius, over the past few years.
Total precipitation in September in Poss over the years
This chart shows the average precipitation in September in Poss, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Poss
Click on any day in September to get detailed info about the usual weather on that day in Poss. Check out the historical temperatures and precipitation over the past 10 years on this day.






























Weather experiences in September in Poss
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Average weather in Poss by month
Click on a month below to see detailed weather info for Poss. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.