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
Dallenwil's progression into September involves a minor drop in the average high-temperature, slightly receding from a refreshing 18.9°C (66°F) in August to a mild 14.8°C (58.6°F). Throughout September, an average low-temperature of 5.3°C (41.5°F) is expected.Humidity
In September, the average relative humidity in Dallenwil, Switzerland, is 82%.Rainfall
September is the month with the least rainfall in Dallenwil. Rain falls for 9.8 days and accumulates 16mm (0.63") of precipitation.Snowfall
In Dallenwil, snow does not fall in June through September.Daylight
In September, the average length of the day in Dallenwil is 12h and 34min.On the first day of the month, sunrise is at 06:46 and sunset at 20:05. On the last day of September, in Dallenwil, sunrise is at 07:24 and sunset at 19:07 CEST.
Sunshine
The average sunshine in September is 8.7h.UV index
In Dallenwil, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Dallenwil?
What is the average humidity in September in Dallenwil?
What is the driest month in Dallenwil?
How many days does it rain in September in Dallenwil?
When it does not snow in Dallenwil?
Does it snow in Dallenwil in September?
How many hours of daylight does Dallenwil have in September?
When is the sunrise / sunset in September in Dallenwil?
How long on average sun shines in September in Dallenwil?
How high is the UV index in September in Dallenwil?
Average temperature in September
Dallenwil, Switzerland
- Average high temperature in September: 14.8°C
The warmest month (with the highest average high temperature) is August (18.9°C).
The month with the lowest average high temperature is January (-0.6°C).
- Average low temperature in September: 5.3°C
The month with the highest average low temperature is August (8.6°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).
Average pressure in September
Dallenwil, Switzerland
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Dallenwil, Switzerland
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is December (8.1km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Dallenwil, Switzerland
- Average humidity in September: 82%
The months with the highest relative humidity are February and March (89%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Dallenwil, Switzerland
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
Dallenwil, Switzerland
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
Dallenwil, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Dallenwil, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dallenwil, 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 12min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Dallenwil, Switzerland
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in September
Dallenwil, 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
Dallenwil, Switzerland
- Average cloud cover in September: 38
The months with the most cloud cover are February and May (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 36).
Average visibility in September
Dallenwil, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are April, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March, May and September (7km).
