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 minor decrease in the average high-temperature is observed during September, shifting from an enjoyable 17.8°C (64°F) in August to a mild 13.5°C (56.3°F). Andeer experiences a consistent average temperature of 3.1°C (37.6°F) throughout the nights in September.Humidity
In September, the average relative humidity in Andeer is 82%.Rainfall
In Andeer, during September, the rain falls for 14 days and regularly aggregates up to 40mm (1.57") of precipitation. In Andeer, during the entire year, the rain falls for 139.1 days and collects up to 628mm (24.72") of precipitation.Snowfall
January through December are months with snowfall in Andeer. In Andeer, Switzerland, in September, during 1.6 snowfall days, 15mm (0.59") of snow is typically accumulated. Throughout the year, in Andeer, there are 104.8 snowfall days, and 1982mm (78.03") of snow is accumulated.Daylight
The average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:42 and sunset at 20:01. On the last day of September, sunrise is at 07:20 and sunset at 19:03 CEST.
Sunshine
The average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Andeer, Switzerland, is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the usual temperature for Andeer in September?
What is the average humidity in September in Andeer?
How much does it rain in Andeer in September?
How many days does it snow in September in Andeer?
What is the average length of the day in September in Andeer?
What time are sunrise and sunset in September in Andeer?
How long on average sun shines in September in Andeer?
What is the UV index reading in September in Andeer?
Average temperature in September
Andeer, Switzerland
- Average high temperature in September: 13.5°C
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in September: 3.1°C
The months with the highest average low temperature are July and August (6.3°C).
The coldest month (with the lowest average low temperature) is February (-10.8°C).
Average pressure in September
Andeer, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Andeer, Switzerland
- Average wind speed in September: 6.8km/h
The windiest months (with the highest average wind speed) are February and November (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Andeer, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Andeer, Switzerland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is August (88mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in September
Andeer, Switzerland
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Andeer, Switzerland
- Average snowfall in September: 15mm
The month with the highest snowfall is December (403mm).
The month with the least snowfall is August (1mm).
Average snowfall days in September
Andeer, Switzerland
- Average snowfall days in September: 1.6 days
The month with the highest number of snowfall days is January (18.3 days).
The month with the least snowfall days is July (0.1 days).
Average daylight in September /
Average sunshine in September
Andeer, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in September
Andeer, Switzerland
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
Andeer, 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, November and December (UV index 1).
Average cloud cover in September
Andeer, Switzerland
- Average cloud cover in September: 42
The month with the most cloud cover is March (Cloud cover 51).
The months with the least cloud cover are July, August and October (Cloud cover 40).
Average visibility in September
Andeer, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).
Andeer, Switzerland
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