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
The advent of September brings a slight shift in average high-temperature, moving from an agreeable 22.5°C (72.5°F) in August to a refreshing 17.9°C (64.2°F). Throughout the month of September, Henau sees a steady low-temperature average of 7.4°C (45.3°F).Humidity
In Henau, Switzerland, the average relative humidity in September is 82%.Rainfall
In Henau, during September, the rain falls for 12.7 days and regularly aggregates up to 35mm (1.38") of precipitation. In Henau, during the entire year, the rain falls for 151 days and collects up to 623mm (24.53") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Henau is 12h and 34min.On the first day of September, sunrise is at 06:43 and sunset at 20:03. On the last day of the month, sunrise is at 07:21 and sunset at 19:04 CEST.
Sunshine
In September, the average sunshine in Henau is 8.7h.UV index
In September, the average daily maximum UV index in Henau is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What are September temperatures in Henau?
What is the average humidity in September in Henau?
How much does it rain in Henau in September?
When it does not snow in Henau?
Does it snow in Henau in September?
How many hours of daylight does Henau have in September?
When are sunrise and sunset in September in Henau?
How many hours of sunshine does Henau have in September?
What is the UV index intensity in September in Henau?
Average temperature in September
Henau, Switzerland
- Average high temperature in September: 17.9°C
The warmest months (with the highest average high temperature) are July and August (22.5°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is August (11.1°C).
The coldest months (with the lowest average low temperature) are January and February (-4.3°C).
Average pressure in September
Henau, 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 (1015.6mbar).
Average wind speed in September
Henau, Switzerland
- Average wind speed in September: 6.1km/h
The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Henau, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Henau, Switzerland
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is May (82mm).
The driest month (with the least rainfall) is November (31mm).
Average rainfall days in September
Henau, Switzerland
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
Henau, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (202mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Henau, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Henau, 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: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Henau, Switzerland
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Henau, 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 November and December (UV index 1).
Average cloud cover in September
Henau, Switzerland
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Henau, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January and February (7km).
Henau, Switzerland
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