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 includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 24.4°C (75.9°F) in August to an enjoyable 19.6°C (67.3°F). An average nighttime temperature of 8.1°C (46.6°F) is noted during the month of September.Humidity
In Hettlingen, the average relative humidity in September is 81%.Rainfall
The month with the least rainfall in Hettlingen, Switzerland, is September, when the rain falls for 9.9 days and typically collects 29mm (1.14") of precipitation.Snowfall
In Hettlingen, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September, sunrise is at 06:44 and sunset at 20:05. On the last day of the month, sunrise is at 07:23 and sunset at 19:06 CEST.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Hettlingen?
What is the average humidity in September in Hettlingen?
What is the driest month in Hettlingen?
How many days does it rain in September in Hettlingen?
When it does not snow in Hettlingen?
Does it snow in Hettlingen in September?
How many hours of daylight does Hettlingen have in September?
When is the sunrise / sunset in September in Hettlingen?
How long on average sun shines in September in Hettlingen?
What is the UV index intensity in September in Hettlingen?
Average temperature in September
Hettlingen, Switzerland
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is July (24.6°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 8.1°C
The months with the highest average low temperature are July and August (12.1°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in September
Hettlingen, Switzerland
- Average pressure in September: 1018.7mbar
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
Hettlingen, Switzerland
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in September
Hettlingen, Switzerland
- Average humidity in September: 81%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in September
Hettlingen, Switzerland
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is December (82mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in September
Hettlingen, Switzerland
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is May (18.4 days).
The months with the least rainy days are September and November (9.9 days).
Average snowfall in September
Hettlingen, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (182mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Hettlingen, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hettlingen, 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 months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Hettlingen, Switzerland
- Average sunshine days in September: 19 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Hettlingen, Switzerland
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Hettlingen, Switzerland
- Average cloud cover in September: 38
The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Hettlingen, 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).
