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
September ushers in a minor alteration in Zweisimmen's climate, with the average high-temperature moving from August's enjoyable 19.3°C (66.7°F) to a still refreshing 15.1°C (59.2°F). The average low-temperature in Zweisimmen during September nights is an icy 5.2°C (41.4°F).Humidity
In Zweisimmen, the average relative humidity in September is 81%.Rainfall
The month with the least rainfall is September, when the rain falls for 6.9 days and typically collects 13mm (0.51") of precipitation.Snowfall
In Zweisimmen, snow does not fall in June through September.Daylight
In Zweisimmen, Switzerland, the average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:51 and sunset at 20:09. On the last day of September, sunrise is at 07:28 and sunset at 19:12 CEST.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Zweisimmen in September?
What is the average humidity in September in Zweisimmen?
What is the driest month in Zweisimmen?
How much does it rain in Zweisimmen in September?
When it does not snow in Zweisimmen?
Does it snow in Zweisimmen in September?
How many hours of daylight does Zweisimmen have in September?
What time are sunrise and sunset in September in Zweisimmen?
How many hours of sunshine does Zweisimmen have in September?
How high is the UV index in September in Zweisimmen?
Average temperature in September
Zweisimmen, Switzerland
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is August (19.3°C).
The months with the lowest average high temperature are January and February (-0.3°C).
- Average low temperature in September: 5.2°C
The month with the highest average low temperature is July (7.9°C).
The coldest month (with the lowest average low temperature) is February (-9.1°C).
Average pressure in September
Zweisimmen, Switzerland
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Zweisimmen, Switzerland
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is December (9.2km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Zweisimmen, Switzerland
- Average humidity in September: 81%
The months with the highest relative humidity are February and March (89%).
The months with the lowest relative humidity are July, August and October (79%).
Average rainfall in September
Zweisimmen, Switzerland
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is May (53mm).
The driest month (with the least rainfall) is September (13mm).
Average rainfall days in September
Zweisimmen, Switzerland
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Zweisimmen, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (236mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Zweisimmen, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Zweisimmen, Switzerland
- Average daylight in September: 12h and 3min
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 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Zweisimmen, Switzerland
- Average sunshine days in September: 22.6 days
The month with the most sunshine days is October (24.6 days).
The month with the least sunshine days is June (17.8 days).
Average UV index in September
Zweisimmen, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Zweisimmen, Switzerland
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are August and October (Cloud cover 35).
Average visibility in September
Zweisimmen, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are April, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March, May and September (7km).
