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
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's agreeable 21.9°C (71.4°F) to a refreshing 17.5°C (63.5°F). The temperature lowers to an average of 6.8°C (44.2°F) during September nights.Humidity
The average relative humidity in September in Sennwald is 79%.Rainfall
In September, in Sennwald, Switzerland, the rain falls for 13.7 days. Throughout September, 54mm (2.13") of precipitation is accumulated. Throughout the year, there are 181.9 rainfall days, and 949mm (37.36") of precipitation is accumulated.Snowfall
In Sennwald, snow does not fall in June through September.Daylight
In September, the average length of the day in Sennwald is 12h and 34min.On the first day of the month, sunrise is at 06:41 and sunset at 20:01. On the last day of September, sunrise is at 07:20 and sunset at 19:03 CEST.
Sunshine
The average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Sennwald?
What is the average humidity in September in Sennwald?
How much does it rain in Sennwald in September?
When it does not snow in Sennwald?
Does it snow in Sennwald in September?
What is the average length of the day in September in Sennwald?
When is the sunrise / sunset in September in Sennwald?
How long on average sun shines in September in Sennwald?
What is the UV index reading in September in Sennwald?
Average temperature in September
Sennwald, Switzerland
- Average high temperature in September: 17.5°C
The warmest month (with the highest average high temperature) is August (21.9°C).
The month with the lowest average high temperature is January (1.8°C).
- Average low temperature in September: 6.8°C
The month with the highest average low temperature is July (10.1°C).
The coldest month (with the lowest average low temperature) is February (-6°C).
Average pressure in September
Sennwald, Switzerland
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Sennwald, Switzerland
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is December (7.9km/h).
The calmest months (with the lowest average wind speed) are August and September (6.4km/h).
Average humidity in September
Sennwald, Switzerland
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in September
Sennwald, Switzerland
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is August (116mm).
The driest month (with the least rainfall) is April (51mm).
Average rainfall days in September
Sennwald, Switzerland
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in September
Sennwald, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (214mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sennwald, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sennwald, 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 36min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Sennwald, Switzerland
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Sennwald, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Sennwald, Switzerland
- Average cloud cover in September: 34
The months with the most cloud cover are January and February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Sennwald, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August and November (9km).
The month with the lowest visibility is January (7km).
