September weather forecastUrnäsch, Switzerland
September
Weather in September
September, the first month of the autumn in Urnäsch, is also an enjoyable month, with an average temperature varying between 7°C (44.6°F) and 17.4°C (63.3°F).Temperature
September's arrival aligns with a minor decrease in average high-temperatures, from August's agreeable 21.8°C (71.2°F) to an enjoyable 17.4°C (63.3°F). An average low-temperature of 7°C (44.6°F) is expected in Urnäsch during September.Humidity
In September, the average relative humidity in Urnäsch is 80%.Rainfall
September is the month with the least rainfall in Urnäsch. Rain falls for 11.4 days and accumulates 38mm (1.5") of precipitation.Snowfall
January through May, August through December are months with snowfall. In Urnäsch, in September, during 0.2 snowfall days, 4mm (0.16") of snow is typically accumulated. In Urnäsch, during the entire year, snow falls for 90.5 days and aggregates up to 3420mm (134.65") of snow.Daylight
The average length of the day in September is 12h and 34min.On the first day of September in Urnäsch, sunrise is at 06:42 and sunset at 20:02. On the last day of the month, sunrise is at 07:21 and sunset at 19:04 CEST.
Sunshine
In Urnäsch, Switzerland, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 3 in September translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Enhance your sun protection with tightly woven, yet airy clothing. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Urnäsch, Switzerland
- Average high temperature in September: 17.4°C
The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (1.5°C).
- Average low temperature in September: 7°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (-5.8°C).
Average pressure in September
Urnäsch, 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
Urnäsch, Switzerland
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in September
Urnäsch, Switzerland
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in September
Urnäsch, Switzerland
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is December (127mm).
The driest month (with the least rainfall) is September (38mm).
Average rainfall days in September
Urnäsch, Switzerland
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in September
Urnäsch, Switzerland
- Average snowfall in September: 4mm
The month with the highest snowfall is January (813mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in September
Urnäsch, Switzerland
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (18.4 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Urnäsch, 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: 9h and 18min
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 12min).
Average sunshine days in September
Urnäsch, Switzerland
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Urnäsch, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Urnäsch, Switzerland
- Average cloud cover in September: 34
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Urnäsch, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are June and August (9km).
The months with the lowest visibility are January, February and December (7km).
