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
Ruppen's weather subtly changes with the onset of September, barely falling from a moderately hot 23°C (73.4°F) in August to an enjoyable 18.6°C (65.5°F). Throughout September, an average low-temperature of 8.6°C (47.5°F) is experienced.Humidity
In Ruppen, the average relative humidity in September is 78%.Rainfall
In Ruppen, in September, it is raining for 14.3 days, with typically 57mm (2.24") of accumulated precipitation. Throughout the year, there are 177.8 rainfall days, and 1006mm (39.61") of precipitation is accumulated.Snowfall
In Ruppen, snow does not fall in June through September.Daylight
In Ruppen, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:41 and sunset at 20:02. On the last day of the month, sunrise is at 07:20 and sunset at 19:03 CEST.
Sunshine
In Ruppen, the average sunshine in September is 9.2h.UV index
In Ruppen, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during September leads to these advisories:
Take precautions - Protection against skin and eye damage is obliged. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Ruppen have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Ruppen, Switzerland
- Average high temperature in September: 18.6°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in September: 8.6°C
The months with the highest average low temperature are July and August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).
Average pressure in September
Ruppen, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Ruppen, Switzerland
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Ruppen, Switzerland
- Average humidity in September: 78%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (75%).
Average rainfall in September
Ruppen, Switzerland
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in September
Ruppen, Switzerland
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Ruppen, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (353mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Ruppen, Switzerland
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Ruppen, Switzerland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Ruppen, Switzerland
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is July (6.6 days).
Average UV index in September
Ruppen, Switzerland
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Ruppen, Switzerland
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Ruppen, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August, October and November (9km).
The months with the lowest visibility are January, February, March, September and December (8km).
