September weather forecastSax, Switzerland
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Sax, Switzerland, with an average temperature ranging between min 7°C (44.6°F) and max 17.4°C (63.3°F).Temperature
With the onset of September, Sax's average high-temperature slightly adjusts, moderately receding from August's agreeable 21.8°C (71.2°F) to a refreshing 17.4°C (63.3°F). Sax's nighttime temperature during September is consistently averaged at a chilly 7°C (44.6°F).Humidity
In Sax, the average relative humidity in September is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 38mm (1.5") of precipitation.Snowfall
January through May, August through December are months with snowfall. In September, in Sax, it is snowing for 0.2 days. Throughout September, 4mm (0.16") of snow is accumulated. In Sax, during the entire year, snow falls for 90.5 days and aggregates up to 3420mm (134.65") of snow.Daylight
In September, the average length of the day in Sax, Switzerland, is 12h and 34min.On the first day of the month, sunrise is at 06:42 and sunset at 20:02. On the last day of September, sunrise is at 07:20 and sunset at 19:03 CEST.
Sunshine
In Sax, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 in September translates into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sax, Switzerland
- Average high temperature in September: 17.4°C
The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (1.5°C).
- Average low temperature in September: 7°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (-5.8°C).
Average pressure in September
Sax, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Sax, Switzerland
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in September
Sax, Switzerland
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in September
Sax, Switzerland
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is December (127mm).
The driest month (with the least rainfall) is September (38mm).
Average rainfall days in September
Sax, Switzerland
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in September
Sax, Switzerland
- Average snowfall in September: 4mm
The month with the highest snowfall is January (813mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in September
Sax, Switzerland
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (18.4 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Sax, Switzerland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Sax, Switzerland
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Sax, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Sax, Switzerland
- Average cloud cover in September: 34
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Sax, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are June and August (9km).
The months with the lowest visibility are January, February and December (7km).





