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
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a mild 13.3°C (55.9°F) in August to a chilly 9.6°C (49.3°F). The average low-temperature of 2.1°C (35.8°F) is witnessed during September.Humidity
In Zermatt, the average relative humidity in September is 84%.Rainfall
In Zermatt, Switzerland, during September, the rain falls for 17.3 days and regularly aggregates up to 56mm (2.2") of precipitation. In Zermatt, during the entire year, the rain falls for 146.2 days and collects up to 991mm (39.02") of precipitation.Snowfall
January through December are months with snowfall in Zermatt. In Zermatt, during September, snow falls for 1.3 days and regularly aggregates up to 17mm (0.67") of snow. Throughout the year, in Zermatt, there are 113.3 snowfall days, and 3425mm (134.84") of snow is accumulated.Daylight
In September, the average length of the day in Zermatt is 12h and 32min.On the first day of the month, sunrise is at 06:50 and sunset at 20:07. On the last day of September, sunrise is at 07:26 and sunset at 19:10 CEST.
Sunshine
The average sunshine in September is 7.5h.UV index
In September, the average daily maximum UV index in Zermatt is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the average maximum UV index of 2 translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What are the temperatures in Zermatt in September?
What is the average humidity in September in Zermatt?
How many days does it rain in September in Zermatt?
How many days does it snow in September in Zermatt?
How many hours of daylight does Zermatt have in September?
When are sunrise and sunset in September in Zermatt?
How long on average sun shines in September in Zermatt?
What is the UV index reading in September in Zermatt?
Average temperature in September
Zermatt, Switzerland
- Average high temperature in September: 9.6°C
The warmest month (with the highest average high temperature) is July (13.5°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in September: 2.1°C
The month with the highest average low temperature is July (4.6°C).
The coldest month (with the lowest average low temperature) is January (-13.5°C).
Average pressure in September
Zermatt, 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 (1015mbar).
Average wind speed in September
Zermatt, Switzerland
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is December (10.3km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).
Average humidity in September
Zermatt, Switzerland
- Average humidity in September: 84%
The months with the highest relative humidity are March and April (92%).
The months with the lowest relative humidity are July and August (82%).
Average rainfall in September
Zermatt, Switzerland
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is November (137mm).
The driest month (with the least rainfall) is January (30mm).
Average rainfall days in September
Zermatt, Switzerland
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in September
Zermatt, Switzerland
- Average snowfall in September: 17mm
The month with the highest snowfall is November (867mm).
The month with the least snowfall is July (1mm).
Average snowfall days in September
Zermatt, Switzerland
- Average snowfall days in September: 1.3 days
The month with the highest number of snowfall days is March (19.2 days).
The month with the least snowfall days is July (0.2 days).
Average daylight in September /
Average sunshine in September
Zermatt, 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 3min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in September
Zermatt, Switzerland
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is June (4.6 days).
Average UV index in September
Zermatt, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, April, May, October and November (UV index 1).
Average cloud cover in September
Zermatt, Switzerland
- Average cloud cover in September: 50
The month with the most cloud cover is April (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 46).
Average visibility in September
Zermatt, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are July and August (8km).
The months with the lowest visibility are February, March, April, May and November (6km).
Zermatt, Switzerland
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