September weather forecastKillwangen, Switzerland
September
Weather in September
September, the first month of the autumn in Killwangen, is also an enjoyable month, with temperature in the range of an average low of 8.4°C (47.1°F) and an average high of 19.9°C (67.8°F).Temperature
Killwangen's transition into September involves a gentle shift in temperature, receding from a moderately hot 24.4°C (75.9°F) in August to a refreshing 19.9°C (67.8°F). Killwangen's average low-temperature during September nights is observed to be a frosty 8.4°C (47.1°F).Humidity
In September, the average relative humidity is 80%.Rainfall
April and September are months with the least rain in Killwangen when the rain falls for 12.5 days and typically aggregates up to 38mm (1.5") of rain.Snowfall
June through September are months without snowfall in Killwangen.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September, sunrise is at 06:46 and sunset at 20:06. On the last day of the month, sunrise is at 07:24 and sunset at 19:07 CEST.
Sunshine
In Killwangen, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Killwangen, Switzerland
- Average high temperature in September: 19.9°C
The warmest months (with the highest average high temperature) are July and August (24.4°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 8.4°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).
Average pressure in September
Killwangen, 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
Killwangen, Switzerland
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity in September
Killwangen, Switzerland
- Average humidity in September: 80%
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
Killwangen, Switzerland
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is August (82mm).
The driest months (with the least rainfall) are April and September (38mm).
Average rainfall days in September
Killwangen, Switzerland
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Killwangen, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (232mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Killwangen, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Killwangen, 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 54min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Killwangen, Switzerland
- Average sunshine days in September: 15 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Killwangen, 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
Killwangen, Switzerland
- Average cloud cover in September: 36
The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Killwangen, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are April, July and August (9km).
The months with the lowest visibility are January and February (7km).
