September weather forecastDornach, Switzerland
September weather for Dornach, Switzerland: The first month of the autumn, September, is still a comfortable month in Dornach, Switzerland, with an average temperature fluctuating between 9.4°C (48.9°F) and 19.7°C (67.5°F). In Dornach, Switzerland, in September, it is raining for 12.5 days, with typically 33mm (1.3") of accumulated precipitation.
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Dornach, Switzerland, with an average temperature fluctuating between 9.4°C (48.9°F) and 19.7°C (67.5°F).Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's moderately hot 24.1°C (75.4°F) to a comfortable 19.7°C (67.5°F). Dornach observes an average low-temperature of 9.4°C (48.9°F) during September.Humidity
In Dornach, Switzerland, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 33mm (1.3") of precipitation.Snowfall
In Dornach, Switzerland, snow does not fall in April through September.Daylight
In Dornach, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 06:49 and sunset at 20:09. On the last day of September, sunrise is at 07:27 and sunset at 19:10 CEST.
Sunshine
In September, the average sunshine in Dornach 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 medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 4 in September translates into this advice:
Take necessary precautions - Defending against sun damage is advocated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dornach, Switzerland
- Average high temperature in September: 19.7°C
The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).
Average pressure in September
Dornach, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The months with the lowest atmospheric pressure are April and November (1015.7mbar).
Average wind speed in September
Dornach, Switzerland
- Average wind speed in September: 7.1km/h
The windiest months (with the highest average wind speed) are February and March (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Dornach, Switzerland
- Average humidity in September: 80%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Dornach, Switzerland
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is June (84mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in September
Dornach, Switzerland
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is October (11.5 days).
Average snowfall in September
Dornach, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (61mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Dornach, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dornach, Switzerland
- Average daylight in September: 12h and 36min
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 42min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Dornach, Switzerland
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (16.8 days).
The months with the least sunshine days are May and June (8.3 days).
Average UV index in September
Dornach, 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
Dornach, Switzerland
- Average cloud cover in September: 35
The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Dornach, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
