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
In the transition to September, Andermatt observes a minor drop in the average high-temperature, shifting from a comfortable 16.3°C (61.3°F) in August to a fresh 12.5°C (54.5°F). An average low-temperature of 3.5°C (38.3°F) is observed during September nights.Humidity
In September, the average relative humidity in Andermatt is 84%.Rainfall
In Andermatt, in September, during 19.4 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Andermatt, during the entire year, the rain falls for 173.4 days and collects up to 1380mm (54.33") of precipitation.Snowfall
January through June, August through December are months with snowfall in Andermatt. In September, it is snowing for 1.6 days. Throughout September, 26mm (1.02") of snow is accumulated. In Andermatt, during the entire year, snow falls for 125.9 days and aggregates up to 4354mm (171.42") of snow.Daylight
The average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:46 and sunset at 20:04. On the last day of September, sunrise is at 07:23 and sunset at 19:07 CEST.
Sunshine
In September, the average sunshine in Andermatt is 8.3h.UV index
In Andermatt, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 2 in September interprets into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Andermatt?
What is the average humidity in September in Andermatt?
How many days does it rain in September in Andermatt?
How much does it snow in Andermatt in September?
What is the average length of the day in September in Andermatt?
When is the sunrise / sunset in September in Andermatt?
How many hours of sunshine does Andermatt have in September?
What is the UV index intensity in September in Andermatt?
Average temperature in September
Andermatt, Switzerland
- Average high temperature in September: 12.5°C
The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is January (-3°C).
- Average low temperature in September: 3.5°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 (-11.4°C).
Average pressure in September
Andermatt, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Andermatt, Switzerland
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is December (8.9km/h).
The calmest month (with the lowest average wind speed) is August (6.1km/h).
Average humidity in September
Andermatt, Switzerland
- Average humidity in September: 84%
The month with the highest relative humidity is March (93%).
The months with the lowest relative humidity are July and August (82%).
Average rainfall in September
Andermatt, Switzerland
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is August (180mm).
The driest month (with the least rainfall) is February (65mm).
Average rainfall days in September
Andermatt, Switzerland
- Average rainfall days in September: 19.4 days
The months with the highest number of rainy days are July and August (25.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
Andermatt, Switzerland
- Average snowfall in September: 26mm
The month with the highest snowfall is December (787mm).
The month with the least snowfall is July (0mm).
Average snowfall days in September
Andermatt, Switzerland
- Average snowfall days in September: 1.6 days
The month with the highest number of snowfall days is March (21 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Andermatt, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in September
Andermatt, Switzerland
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is October (13.1 days).
The month with the least sunshine days is August (4 days).
Average UV index in September
Andermatt, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, April and November (UV index 1).
Average cloud cover in September
Andermatt, Switzerland
- Average cloud cover in September: 47
The months with the most cloud cover are February, March, April and May (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 44).
Average visibility in September
Andermatt, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July and August (8km).
The month with the lowest visibility is January (5km).
