September weather forecastPlasselb, Switzerland
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Plasselb, Switzerland, with an average temperature fluctuating between 17.6°C (63.7°F) and 7.4°C (45.3°F).Temperature
Plasselb's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's agreeable 21.9°C (71.4°F) to a refreshing 17.6°C (63.7°F). Throughout September, the average low-temperature in Plasselb dips to a chilly 7.4°C (45.3°F).Humidity
The average relative humidity in September in Plasselb is 82%.Rainfall
September is the month with the least rainfall. Rain falls for 16.5 days and accumulates 53mm (2.09") of precipitation.Snowfall
June through September are months without snowfall in Plasselb, Switzerland.Daylight
In September, the average length of the day is 12h and 33min.On the first day of September, sunrise is at 06:51 and sunset at 20:10. On the last day of the month, sunrise is at 07:29 and sunset at 19:12 CEST.
Sunshine
The average sunshine in September in Plasselb is 8.7h.UV index
In Plasselb, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Plasselb, Switzerland
- Average high temperature in September: 17.6°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-4.6°C).
Average pressure in September
Plasselb, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Plasselb, Switzerland
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in September
Plasselb, Switzerland
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall in September
Plasselb, Switzerland
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is June (117mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in September
Plasselb, Switzerland
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is May (23.1 days).
The month with the least rainy days is February (12.2 days).
Average snowfall in September
Plasselb, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Plasselb, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Plasselb, Switzerland
- Average daylight in September: 12h and 36min
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 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Plasselb, Switzerland
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is June (4.3 days).
Average UV index in September
Plasselb, 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, November and December (UV index 2).
Average cloud cover in September
Plasselb, Switzerland
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Plasselb, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).





