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
A minor decrease in the average high-temperature is observed during September, shifting from a comfortable 17.3°C (63.1°F) in August to a fresh 12.9°C (55.2°F). An average low-temperature of 2.6°C (36.7°F) is observed during September nights.Humidity
In September, the average relative humidity in Saas is 82%.Rainfall
In Saas, in September, it is raining for 15.9 days, with typically 51mm (2.01") of accumulated precipitation. Throughout the year, in Saas, there are 169.1 rainfall days, and 682mm (26.85") of precipitation is accumulated.Snowfall
Months with snowfall in Saas are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 8mm (0.31") of snow. In Saas, during the entire year, snow falls for 87.8 days and aggregates up to 1391mm (54.76") of snow.Daylight
In September, the average length of the day in Saas is 12h and 33min.On the first day of the month, sunrise is at 06:40 and sunset at 20:00. On the last day of September, in Saas, sunrise is at 07:18 and sunset at 19:02 CEST.
Sunshine
The average sunshine in September in Saas, Switzerland, is 8.7h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Saas in September?
What is the average humidity in September in Saas?
How much does it rain in Saas in September?
When does it start snowing in Saas?
What is the average length of the day in September in Saas?
When is the sunrise / sunset in September in Saas?
How many hours of sunshine does Saas have in September?
What is the UV index reading in September in Saas?
Average temperature in September
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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
Saas, 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).
