September weather forecastBorex, Switzerland
September
Weather in September
September, the first month of the autumn in Borex, is still a refreshing month, with temperature in the range of an average low of 8.2°C (46.8°F) and an average high of 17.5°C (63.5°F).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from an agreeable 21.8°C (71.2°F) to an enjoyable 17.5°C (63.5°F). Throughout September, Borex registers a consistent average low-temperature of 8.2°C (46.8°F).Humidity
In Borex, Switzerland, the average relative humidity in September is 84%.Rainfall
September is the month with the least rainfall. Rain falls for 16.2 days and accumulates 84mm (3.31") of precipitation.Snowfall
January through May, September through December are months with snowfall in Borex. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Borex, there are 91.9 snowfall days, and 3413mm (134.37") of snow is accumulated.Daylight
In Borex, the average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 06:56 and sunset at 20:14. On the last day of the month, sunrise is at 07:33 and sunset at 19:17 CEST.
Sunshine
In September, the average sunshine in Borex, Switzerland, is 7.8h.UV index
The average daily maximum UV index in September in Borex is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 3 during September leads to these instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Borex, Switzerland
- Average high temperature in September: 17.5°C
The warmest months (with the highest average high temperature) are July and August (21.8°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 8.2°C
The month with the highest average low temperature is July (11.2°C).
The coldest month (with the lowest average low temperature) is February (-3.7°C).
Average pressure in September
Borex, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Borex, Switzerland
- Average wind speed in September: 7.8km/h
The windiest month (with the highest average wind speed) is February (10.8km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Borex, Switzerland
- Average humidity in September: 84%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are July and August (81%).
Average rainfall in September
Borex, Switzerland
- Average rainfall in September: 84mm
The wettest month (with the highest rainfall) is December (173mm).
The driest month (with the least rainfall) is September (84mm).
Average rainfall days in September
Borex, Switzerland
- Average rainfall days in September: 16.2 days
The months with the highest number of rainy days are May and June (22.8 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in September
Borex, Switzerland
- Average snowfall in September: 1mm
The month with the highest snowfall is December (833mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Borex, Switzerland
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Borex, Switzerland
- Average daylight in September: 12h and 30min
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: 7h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in September
Borex, Switzerland
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is October (13.5 days).
The month with the least sunshine days is June (5.9 days).
Average UV index in September
Borex, 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
Borex, Switzerland
- Average cloud cover in September: 42
The months with the most cloud cover are January, February and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Borex, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (8km).
The month with the lowest visibility is January (7km).
