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
Brot-Dessous, Switzerland, experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a pleasant 22.2°C (72°F) in August to a refreshing 17.9°C (64.2°F). Throughout September, the temperature falls to an average low of 8.1°C (46.6°F).Humidity
The average relative humidity in September is 84%.Rainfall
In Brot-Dessous, in September, it is raining for 13.4 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, in Brot-Dessous, there are 160.9 rainfall days, and 547mm (21.54") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Brot-Dessous.Daylight
The average length of the day in September in Brot-Dessous, Switzerland, is 12h and 34min.On the first day of the month, sunrise is at 06:53 and sunset at 20:12. On the last day of September, in Brot-Dessous, sunrise is at 07:31 and sunset at 19:14 CEST.
Sunshine
In Brot-Dessous, Switzerland, the average sunshine in September is 7.7h.UV index
In Brot-Dessous, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Brot-Dessous?
What is the average humidity in September in Brot-Dessous?
How many days does it rain in September in Brot-Dessous?
When it does not snow in Brot-Dessous?
Does it snow in Brot-Dessous in September?
How many hours of daylight does Brot-Dessous have in September?
When is the sunrise / sunset in September in Brot-Dessous?
How long on average sun shines in September in Brot-Dessous?
What is the UV index reading in September in Brot-Dessous?
Average temperature in September
Brot-Dessous, Switzerland
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (2.5°C).
- Average low temperature in September: 8.1°C
The months with the highest average low temperature are July and August (11.4°C).
The coldest month (with the lowest average low temperature) is February (-3.5°C).
Average pressure in September
Brot-Dessous, 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
Brot-Dessous, Switzerland
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is February (12km/h).
The calmest month (with the lowest average wind speed) is August (7.1km/h).
Average humidity in September
Brot-Dessous, Switzerland
- Average humidity in September: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (80%).
Average rainfall in September
Brot-Dessous, Switzerland
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is June (68mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days in September
Brot-Dessous, Switzerland
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in September
Brot-Dessous, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (59mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Brot-Dessous, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brot-Dessous, 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: 7h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in September
Brot-Dessous, Switzerland
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in September
Brot-Dessous, 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, November and December (UV index 2).
Average cloud cover in September
Brot-Dessous, Switzerland
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Brot-Dessous, Switzerland
- Average visibility in September: 8km
The month with the highest visibility is March (9km).
The months with the lowest visibility are January, February, April, May, June, July, August, September, October, November and December (8km).
