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
Bourg-Saint-Pierre in September undergoes a slight reduction in the average high-temperature, shifting from August's mild 14.8°C (58.6°F) to a cool 10.7°C (51.3°F). September nights cool down to an average low-temperature of 2.5°C (36.5°F).Humidity
In September, the average relative humidity is 82%.Rainfall
The month with the least rainfall is September, when the rain falls for 16.4 days and typically collects 73mm (2.87") of precipitation.Snowfall
Months with snowfall are January through December. In September, it is snowing for 8.6 days. Throughout September, 186mm (7.32") of snow is accumulated. In Bourg-Saint-Pierre, during the entire year, snow falls for 180 days and aggregates up to 6089mm (239.72") of snow.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 06:52 and sunset at 20:09. On the last day of the month, sunrise is at 07:28 and sunset at 19:13 CEST.
Sunshine
In Bourg-Saint-Pierre, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Bourg-Saint-Pierre is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 2 in September interprets into the following advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the temperature in September in Bourg-Saint-Pierre?
What is the average humidity in September in Bourg-Saint-Pierre?
What is the driest month in Bourg-Saint-Pierre?
How many days does it rain in September in Bourg-Saint-Pierre?
How many days does it snow in September in Bourg-Saint-Pierre?
What is the average length of the day in September in Bourg-Saint-Pierre?
When are sunrise and sunset in September in Bourg-Saint-Pierre?
How long on average sun shines in September in Bourg-Saint-Pierre?
How high is the UV index in September in Bourg-Saint-Pierre?
Average temperature in September
Bourg-Saint-Pierre, Switzerland
- Average high temperature in September: 10.7°C
The warmest month (with the highest average high temperature) is August (14.8°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in September: 2.5°C
The month with the highest average low temperature is August (5.4°C).
The coldest months (with the lowest average low temperature) are January and February (-12.6°C).
Average pressure in September
Bourg-Saint-Pierre, Switzerland
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
Bourg-Saint-Pierre, Switzerland
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is December (9km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in September
Bourg-Saint-Pierre, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (90%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Bourg-Saint-Pierre, Switzerland
- Average rainfall in September: 73mm
The wettest month (with the highest rainfall) is May (152mm).
The driest month (with the least rainfall) is September (73mm).
Average rainfall days in September
Bourg-Saint-Pierre, Switzerland
- Average rainfall days in September: 16.4 days
The month with the highest number of rainy days is July (24.4 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Bourg-Saint-Pierre, Switzerland
- Average snowfall in September: 186mm
The month with the highest snowfall is May (917mm).
The month with the least snowfall is July (33mm).
Average snowfall days in September
Bourg-Saint-Pierre, Switzerland
- Average snowfall days in September: 8.6 days
The month with the highest number of snowfall days is March (22.6 days).
The month with the least snowfall days is July (2.8 days).
Average daylight in September /
Average sunshine in September
Bourg-Saint-Pierre, 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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Bourg-Saint-Pierre, Switzerland
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is October (13.5 days).
The month with the least sunshine days is June (3 days).
Average UV index in September
Bourg-Saint-Pierre, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are January, February, March and April (UV index 1).
Average cloud cover in September
Bourg-Saint-Pierre, Switzerland
- Average cloud cover in September: 44
The months with the most cloud cover are March and May (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Bourg-Saint-Pierre, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February, March, April and May (6km).
Bourg-Saint-Pierre, Switzerland
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