September weather forecastSembrancher, Switzerland
September
Weather in September
The first month of the autumn, September, is still a cool month in Sembrancher, Switzerland, with an average temperature ranging between max 12°C (53.6°F) and min 2.8°C (37°F).Temperature
The arrival of September corresponds with a light shift in temperature, down from a comfortable 16.2°C (61.2°F) in August to a fresh 12°C (53.6°F). During September in Sembrancher, the average low-temperature is recorded at an icy 2.8°C (37°F).Humidity
In September, the average relative humidity is 82%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.1 days and typically collects 43mm (1.69") of precipitation.Snowfall
January through May, August through December are months with snowfall. In Sembrancher, in September, snow falls for 1.2 days, with typically accumulated 12mm (0.47") of snow. Throughout the year, there are 97.6 snowfall days, and 2767mm (108.94") of snow is accumulated.Daylight
In September, the average length of the day in Sembrancher is 12h and 32min.On the first day of the month, sunrise is at 06:52 and sunset at 20:09. On the last day of September, sunrise is at 07:29 and sunset at 19:13 CEST.
Sunshine
In Sembrancher, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 in September translates into this advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Around midday, solar radiation is most harmful; hence, exposure should be limited. Always opt for UVA and UVB-resistant sunglasses on radiant days. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sembrancher, Switzerland
- Average high temperature in September: 12°C
The warmest month (with the highest average high temperature) is August (16.2°C).
The month with the lowest average high temperature is January (-2.9°C).
- Average low temperature in September: 2.8°C
The months with the highest average low temperature are July and August (5.6°C).
The coldest month (with the lowest average low temperature) is January (-12.3°C).
Average pressure in September
Sembrancher, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Sembrancher, Switzerland
- Average wind speed in September: 6.7km/h
The windiest months (with the highest average wind speed) are November and December (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Sembrancher, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is August (79%).
Average rainfall in September
Sembrancher, Switzerland
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is May (117mm).
The driest month (with the least rainfall) is September (43mm).
Average rainfall days in September
Sembrancher, Switzerland
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
Sembrancher, Switzerland
- Average snowfall in September: 12mm
The month with the highest snowfall is December (669mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in September
Sembrancher, Switzerland
- Average snowfall days in September: 1.2 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in September /
Average sunshine in September
Sembrancher, 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: 8h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 42min).
Average sunshine days in September
Sembrancher, Switzerland
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is May (6.3 days).
Average UV index in September
Sembrancher, Switzerland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Sembrancher, Switzerland
- Average cloud cover in September: 42
The months with the most cloud cover are February, March and May (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Sembrancher, 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 and March (6km).
