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
The average high-temperature slightly decreases in September, shifting from a refreshing 14.7°C (58.5°F) in August to a cool 11.1°C (52°F). Zwischbergen, in September, witnesses an average low-temperature of 3.4°C (38.1°F).Humidity
The average relative humidity in September is 84%.Rainfall
In Zwischbergen, during September, the rain falls for 19.6 days and regularly aggregates up to 128mm (5.04") of precipitation. In Zwischbergen, Switzerland, during the entire year, the rain falls for 166.1 days and collects up to 2045mm (80.51") of precipitation.Snowfall
Months with snowfall are January through December. In September, it is snowing for 7.1 days. Throughout September, 218mm (8.58") of snow is accumulated. Throughout the year, in Zwischbergen, there are 176 snowfall days, and 8983mm (353.66") of snow is accumulated.Daylight
In Zwischbergen, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:48 and sunset at 20:05. On the last day of September, in Zwischbergen, sunrise is at 07:25 and sunset at 19:09 CEST.
Sunshine
In September, the average sunshine is 7.7h.UV index
The average daily maximum UV index in September in Zwischbergen is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 2 suggests this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Zwischbergen in September?
What is the average humidity in September in Zwischbergen?
How many days does it rain in September in Zwischbergen?
How many days does it snow in September in Zwischbergen?
How many hours of daylight does Zwischbergen have in September?
When are sunrise and sunset in September in Zwischbergen?
How long on average sun shines in September in Zwischbergen?
What is the UV index reading in September in Zwischbergen?
Average temperature in September
Zwischbergen, Switzerland
- Average high temperature in September: 11.1°C
The warmest month (with the highest average high temperature) is July (15°C).
The month with the lowest average high temperature is January (-3.4°C).
- Average low temperature in September: 3.4°C
The month with the highest average low temperature is July (6.3°C).
The coldest month (with the lowest average low temperature) is January (-11.2°C).
Average pressure in September
Zwischbergen, 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 (1015.1mbar).
Average wind speed in September
Zwischbergen, Switzerland
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is December (9.6km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Zwischbergen, Switzerland
- Average humidity in September: 84%
The months with the highest relative humidity are March and April (89%).
The month with the lowest relative humidity is July (82%).
Average rainfall in September
Zwischbergen, Switzerland
- Average rainfall in September: 128mm
The wettest month (with the highest rainfall) is July (258mm).
The driest month (with the least rainfall) is January (81mm).
Average rainfall days in September
Zwischbergen, Switzerland
- Average rainfall days in September: 19.6 days
The month with the highest number of rainy days is July (27.7 days).
The month with the least rainy days is November (3.7 days).
Average snowfall in September
Zwischbergen, Switzerland
- Average snowfall in September: 218mm
The month with the highest snowfall is November (1749mm).
The month with the least snowfall is July (27mm).
Average snowfall days in September
Zwischbergen, Switzerland
- Average snowfall days in September: 7.1 days
The month with the highest number of snowfall days is April (25 days).
The month with the least snowfall days is July (1.6 days).
Average daylight in September /
Average sunshine in September
Zwischbergen, 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: 7h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is November (Average sunshine: 4h and 24min).
Average sunshine days in September
Zwischbergen, Switzerland
- Average sunshine days in September: 6.6 days
The month with the most sunshine days is December (12.5 days).
The month with the least sunshine days is July (2.4 days).
Average UV index in September
Zwischbergen, 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 and April (UV index 1).
Average cloud cover in September
Zwischbergen, Switzerland
- Average cloud cover in September: 48
The month with the most cloud cover is April (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in September
Zwischbergen, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July and August (8km).
The months with the lowest visibility are March, April and November (6km).
