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
Weather in September
Temperature
In September, the average high-temperature marginally decreases from a moderately hot 23°C (73.4°F) in August to a refreshing 18.7°C (65.7°F). Brunnenthal throughout September, experiences an average nighttime temperature of 8.3°C (46.9°F).Humidity
In Brunnenthal, Switzerland, the average relative humidity in September is 82%.Rainfall
The month with the least rainfall in Brunnenthal is September, when the rain falls for 15 days and typically collects 46mm (1.81") of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Brunnenthal. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 37.6 snowfall days, and 557mm (21.93") of snow is accumulated.Daylight
The average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 06:50 and sunset at 20:09. On the last day of September, in Brunnenthal, sunrise is at 07:28 and sunset at 19:11 CEST.
Sunshine
In September, the average sunshine is 8.6h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 in September translates into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What is the usual temperature for Brunnenthal in September?
What is the average humidity in September in Brunnenthal?
What is the driest month in Brunnenthal?
How much does it rain in Brunnenthal in September?
When does it start to snow in Brunnenthal?
How many hours of daylight does Brunnenthal have in September?
When is the sunrise / sunset in September in Brunnenthal?
How many hours of sunshine does Brunnenthal have in September?
How high is the UV index in September in Brunnenthal?
Average temperature in September
Brunnenthal, Switzerland
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.7°C).
- Average low temperature in September: 8.3°C
The month with the highest average low temperature is July (11.9°C).
The coldest months (with the lowest average low temperature) are January and February (-2.8°C).
Average pressure in September
Brunnenthal, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Brunnenthal, Switzerland
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (10.2km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in September
Brunnenthal, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall in September
Brunnenthal, Switzerland
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is June (97mm).
The driest month (with the least rainfall) is September (46mm).
Average rainfall days in September
Brunnenthal, Switzerland
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is May (21.9 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in September
Brunnenthal, Switzerland
- Average snowfall in September: 1mm
The month with the highest snowfall is February (133mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Brunnenthal, Switzerland
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Brunnenthal, Switzerland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Brunnenthal, Switzerland
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is May (6.7 days).
Average UV index in September
Brunnenthal, Switzerland
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Brunnenthal, Switzerland
- Average cloud cover in September: 37
The months with the most cloud cover are January, February and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Brunnenthal, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
Brunnenthal, Switzerland
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