September weather forecastLax, Switzerland
September
Weather in September
The first month of the autumn, September, is also a frosty month in Lax, Switzerland, with an average temperature varying between 9.8°C (49.6°F) and 1.5°C (34.7°F).Temperature
As August makes way for September, Lax's average high-temperature eases from a mild 13.8°C (56.8°F) to a frosty 9.8°C (49.6°F). In the month of September, the average temperature in Lax dips to an icy 1.5°C (34.7°F) during the night.Humidity
In Lax, the average relative humidity in September is 86%.Rainfall
In September, in Lax, the rain falls for 17.5 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Lax, Switzerland, during the entire year, the rain falls for 148 days and collects up to 606mm (23.86") of precipitation.Snowfall
January through December are months with snowfall in Lax, Switzerland. In Lax, in September, during 2.2 snowfall days, 43mm (1.69") of snow is typically accumulated. In Lax, Switzerland, during the entire year, snow falls for 124.7 days and aggregates up to 1943mm (76.5") of snow.Daylight
In September, the average length of the day in Lax is 12h and 33min.On the first day of the month, sunrise is at 06:48 and sunset at 20:06. On the last day of September, sunrise is at 07:25 and sunset at 19:09 CEST.
Sunshine
The average sunshine in September is 6.9h.UV index
The average daily maximum UV index in September in Lax, Switzerland, is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 2 during September translates into the following directions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lax, Switzerland
- Average high temperature in September: 9.8°C
The warmest month (with the highest average high temperature) is July (14.1°C).
The month with the lowest average high temperature is January (-4.2°C).
- Average low temperature in September: 1.5°C
The months with the highest average low temperature are July and August (4.3°C).
The coldest month (with the lowest average low temperature) is February (-13.8°C).
Average pressure in September
Lax, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Lax, Switzerland
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is December (9.5km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Lax, Switzerland
- Average humidity in September: 86%
The months with the highest relative humidity are March and April (93%).
The months with the lowest relative humidity are July and August (84%).
Average rainfall in September
Lax, Switzerland
- Average rainfall in September: 36mm
The wettest months (with the highest rainfall) are June and August (74mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in September
Lax, Switzerland
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (25.3 days).
The month with the least rainy days is December (2.5 days).
Average snowfall in September
Lax, Switzerland
- Average snowfall in September: 43mm
The month with the highest snowfall is November (472mm).
The month with the least snowfall is July (2mm).
Average snowfall days in September
Lax, Switzerland
- Average snowfall days in September: 2.2 days
The month with the highest number of snowfall days is March (19.5 days).
The month with the least snowfall days is July (0.2 days).
Average daylight in September /
Average sunshine in September
Lax, Switzerland
- Average daylight in September: 12h and 30min
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: 6h and 54min
The month with the most sunshine is July (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Lax, Switzerland
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is August (3.9 days).
Average UV index in September
Lax, 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, October, November and December (UV index 1).
Average cloud cover in September
Lax, Switzerland
- Average cloud cover in September: 57
The month with the most cloud cover is May (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 52).
Average visibility in September
Lax, Switzerland
- Average visibility in September: 7km
The month with the highest visibility is July (8km).
The months with the lowest visibility are January, February, March, April, May and November (6km).





