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
As Unterschächen enters September, the average high-temperature subtly lowers from the a refreshing 18.8°C (65.8°F) of August to a moderate 14.7°C (58.5°F). In Unterschächen, the average nighttime temperature during September is a cold 5.5°C (41.9°F).Humidity
In Unterschächen, Switzerland, the average relative humidity in September is 82%.Rainfall
In Unterschächen, Switzerland, during September, the rain falls for 18.3 days and regularly aggregates up to 72mm (2.83") of precipitation. Throughout the year, there are 216.7 rainfall days, and 1294mm (50.94") of precipitation is accumulated.Snowfall
In Unterschächen, snow does not fall in June through September.Daylight
In Unterschächen, Switzerland, the average length of the day in September is 12h and 33min.On the first day of September in Unterschächen, sunrise is at 06:45 and sunset at 20:04. On the last day of the month, sunrise is at 07:22 and sunset at 19:06 CEST.
Sunshine
The average sunshine in September in Unterschächen is 8.8h.UV index
In September, the average daily maximum UV index in Unterschächen is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Around midday, solar radiation is most harmful; hence, exposure should be limited. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What are September temperatures in Unterschächen?
What is the average humidity in September in Unterschächen?
How much does it rain in Unterschächen in September?
When it does not snow in Unterschächen?
Does it snow in Unterschächen in September?
What is the average length of the day in September in Unterschächen?
When is the sunrise / sunset in September in Unterschächen?
How long on average sun shines in September in Unterschächen?
What is the UV index reading in September in Unterschächen?
Average temperature in September
Unterschächen, Switzerland
- Average high temperature in September: 14.7°C
The warmest month (with the highest average high temperature) is August (18.8°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is August (8.8°C).
The coldest month (with the lowest average low temperature) is February (-8°C).
Average pressure in September
Unterschächen, Switzerland
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Unterschächen, Switzerland
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Unterschächen, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Unterschächen, Switzerland
- Average rainfall in September: 72mm
The wettest month (with the highest rainfall) is August (166mm).
The driest month (with the least rainfall) is February (70mm).
Average rainfall days in September
Unterschächen, Switzerland
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is July (24.1 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in September
Unterschächen, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (232mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Unterschächen, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Unterschächen, Switzerland
- Average daylight in September: 12h and 4min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Unterschächen, Switzerland
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is July (4.4 days).
Average UV index in September
Unterschächen, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Unterschächen, Switzerland
- Average cloud cover in September: 38
The months with the most cloud cover are February, March and May (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 37).
Average visibility in September
Unterschächen, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are April, May, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March and September (7km).
Unterschächen, Switzerland
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