Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
With the arrival of September, Sonogno notices a mild change in the average high-temperature, sliding from August's agreeable 20.8°C (69.4°F) to an enjoyable 16.5°C (61.7°F). Throughout the month of September, Sonogno sees a steady low-temperature average of 7.2°C (45°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In Sonogno, during September, the rain falls for 17.6 days and regularly aggregates up to 63mm (2.48") of precipitation. Throughout the year, there are 200.8 rainfall days, and 1253mm (49.33") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Sonogno, Switzerland.Daylight
In Sonogno, Switzerland, the average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 06:45 and sunset at 20:03. On the last day of the month, sunrise is at 07:22 and sunset at 19:06 CEST.
Sunshine
In September, the average sunshine in Sonogno, Switzerland, is 9.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sonogno in September?
What is the average humidity in September in Sonogno?
How much does it rain in Sonogno in September?
When it does not snow in Sonogno?
Does it snow in Sonogno in September?
What is the average length of the day in September in Sonogno?
What time are sunrise and sunset in September in Sonogno?
How many hours of sunshine does Sonogno have in September?
What is the UV index intensity in September in Sonogno?
Average temperature in September
Sonogno, Switzerland
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (0.9°C).
- Average low temperature in September: 7.2°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is January (-5.9°C).
Average pressure in September
Sonogno, Switzerland
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in September
Sonogno, Switzerland
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is February (7.4km/h).
The calmest month (with the lowest average wind speed) is November (5.8km/h).
Average humidity in September
Sonogno, Switzerland
- Average humidity in September: 79%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Sonogno, Switzerland
- Average rainfall in September: 63mm
The wettest month (with the highest rainfall) is November (164mm).
The driest month (with the least rainfall) is January (45mm).
Average rainfall days in September
Sonogno, Switzerland
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is July (25.5 days).
The months with the least rainy days are February and December (8.6 days).
Average snowfall in September
Sonogno, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is November (334mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sonogno, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sonogno, Switzerland
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 24min).
Average sunshine days in September
Sonogno, Switzerland
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is October (14.9 days).
The month with the least sunshine days is June (3.1 days).
Average UV index in September
Sonogno, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Sonogno, Switzerland
- Average cloud cover in September: 33
The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Sonogno, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August and December (9km).
The months with the lowest visibility are January, February, March, September, October and November (8km).
