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
A mild shift in the average high-temperature occurs in September in Klosters-Serneus, reducing from a comfortable 17.3°C (63.1°F) in August to a cool 12.9°C (55.2°F). During September in Klosters-Serneus, Switzerland, the average low-temperature is recorded at a cold 2.6°C (36.7°F).Humidity
In Klosters-Serneus, the average relative humidity in September is 82%.Rainfall
In Klosters-Serneus, in September, it is raining for 15.9 days, with typically 51mm (2.01") of accumulated precipitation. In Klosters-Serneus, during the entire year, the rain falls for 169.1 days and collects up to 682mm (26.85") of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Klosters-Serneus, Switzerland. Throughout September, in the average 0.3 snowfall days, it receives 8mm (0.31") of snow. In Klosters-Serneus, during the entire year, snow falls for 87.8 days and aggregates up to 1391mm (54.76") of snow.Daylight
In Klosters-Serneus, the average length of the day in September is 12h and 33min.On the first day of September in Klosters-Serneus, sunrise is at 06:40 and sunset at 19:59. On the last day of the month, sunrise is at 07:18 and sunset at 19:02 CEST.
Sunshine
The average sunshine in September in Klosters-Serneus is 8.7h.UV index
In Klosters-Serneus, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during September translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the temperature in September in Klosters-Serneus?
What is the average humidity in September in Klosters-Serneus?
How many days does it rain in September in Klosters-Serneus?
When does it start to snow in Klosters-Serneus?
What is the average length of the day in September in Klosters-Serneus?
When are sunrise and sunset in September in Klosters-Serneus?
How many hours of sunshine does Klosters-Serneus have in September?
What is the UV index reading in September in Klosters-Serneus?
Average temperature in September
Klosters-Serneus, Switzerland
- Average high temperature in September: 12.9°C
The warmest month (with the highest average high temperature) is August (17.3°C).
The month with the lowest average high temperature is January (-2.7°C).
- Average low temperature in September: 2.6°C
The month with the highest average low temperature is August (5.6°C).
The coldest month (with the lowest average low temperature) is February (-12.3°C).
Average pressure in September
Klosters-Serneus, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Klosters-Serneus, Switzerland
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is November (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).
Average humidity in September
Klosters-Serneus, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Klosters-Serneus, Switzerland
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is August (99mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in September
Klosters-Serneus, Switzerland
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is December (6.8 days).
Average snowfall in September
Klosters-Serneus, Switzerland
- Average snowfall in September: 8mm
The month with the highest snowfall is January (280mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Klosters-Serneus, Switzerland
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Klosters-Serneus, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in September
Klosters-Serneus, Switzerland
- Average sunshine days in September: 9.9 days
The month with the most sunshine days is October (14.2 days).
The months with the least sunshine days are May and June (6.4 days).
Average UV index in September
Klosters-Serneus, 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, February and November (UV index 1).
Average cloud cover in September
Klosters-Serneus, Switzerland
- Average cloud cover in September: 42
The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Klosters-Serneus, 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 January, February, March and April (6km).
Klosters-Serneus, Switzerland
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