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
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a comfortable 18.5°C (65.3°F) in August to a still refreshing 14.2°C (57.6°F). The low-temperature average for Ilanz during September stands at a wintry 3.8°C (38.8°F).Humidity
In September, the average relative humidity in Ilanz is 82%.Rainfall
In Ilanz, in September, during 12.1 rainfall days, 27mm (1.06") of precipitation is typically accumulated. In Ilanz, Switzerland, during the entire year, the rain falls for 142.4 days and collects up to 455mm (17.91") of precipitation.Snowfall
January through May, September through December are months with snowfall in Ilanz. September is the first month it typically snows in Ilanz, Switzerland. Throughout September, in the average 0.3 snowfall days, it receives 3mm (0.12") of snow. In Ilanz, during the entire year, snow falls for 75.1 days and aggregates up to 712mm (28.03") of snow.Daylight
In Ilanz, the average length of the day in September is 12h and 33min.On the first day of September in Ilanz, sunrise is at 06:43 and sunset at 20:02. On the last day of the month, sunrise is at 07:21 and sunset at 19:04 CEST.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index in Ilanz is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What are the temperatures in Ilanz in September?
What is the average humidity in September in Ilanz?
How many days does it rain in September in Ilanz?
When does it start snowing in Ilanz?
How many hours of daylight does Ilanz have in September?
When are sunrise and sunset in September in Ilanz?
How many hours of sunshine does Ilanz have in September?
What is the UV index reading in September in Ilanz?
Average temperature in September
Ilanz, Switzerland
- Average high temperature in September: 14.2°C
The warmest months (with the highest average high temperature) are July and August (18.5°C).
The month with the lowest average high temperature is January (-1.7°C).
- Average low temperature in September: 3.8°C
The month with the highest average low temperature is August (7°C).
The coldest month (with the lowest average low temperature) is February (-10.1°C).
Average pressure in September
Ilanz, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Ilanz, Switzerland
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is November (8km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity in September
Ilanz, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (91%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Ilanz, Switzerland
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is August (71mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in September
Ilanz, Switzerland
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Ilanz, Switzerland
- Average snowfall in September: 3mm
The month with the highest snowfall is January (144mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Ilanz, Switzerland
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Ilanz, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Ilanz, Switzerland
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in September
Ilanz, 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 and November (UV index 1).
Average cloud cover in September
Ilanz, Switzerland
- Average cloud cover in September: 41
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Ilanz, 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).
Ilanz, Switzerland
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