September weather forecastAcquarossa, Switzerland
September
Weather in September
The first month of the autumn, September, is also a fresh month in Acquarossa, Switzerland, with an average temperature fluctuating between 2.8°C (37°F) and 11.6°C (52.9°F).Temperature
Acquarossa in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderate 15.8°C (60.4°F) in August to a cool 11.6°C (52.9°F). September's average low-temperature reading settles at a wintry 2.8°C (37°F).Humidity
In Acquarossa, the average relative humidity in September is 85%.Rainfall
In Acquarossa, during September, the rain falls for 20.9 days and regularly aggregates up to 94mm (3.7") of precipitation. Throughout the year, in Acquarossa, there are 200.1 rainfall days, and 1619mm (63.74") of precipitation is accumulated.Snowfall
Months with snowfall in Acquarossa are January through May, September through December. September is the first month it typically snows in Acquarossa. Throughout September, in the average 0.4 snowfall days, it receives 6mm (0.24") of snow. In Acquarossa, during the entire year, snow falls for 114.5 days and aggregates up to 3819mm (150.35") of snow.Daylight
In Acquarossa, the average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:45 and sunset at 20:03. On the last day of September, sunrise is at 07:22 and sunset at 19:05 CEST.
Sunshine
In Acquarossa, the average sunshine in September is 7.4h.UV index
In Acquarossa, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 2 suggests these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Acquarossa, Switzerland
- Average high temperature in September: 11.6°C
The warmest month (with the highest average high temperature) is July (16.2°C).
The month with the lowest average high temperature is January (-3.9°C).
- Average low temperature in September: 2.8°C
The month with the highest average low temperature is July (6.3°C).
The coldest month (with the lowest average low temperature) is February (-12.7°C).
Average pressure in September
Acquarossa, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Acquarossa, Switzerland
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is December (10km/h).
The calmest month (with the lowest average wind speed) is August (7.1km/h).
Average humidity in September
Acquarossa, Switzerland
- Average humidity in September: 85%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is July (82%).
Average rainfall in September
Acquarossa, Switzerland
- Average rainfall in September: 94mm
The wettest month (with the highest rainfall) is August (205mm).
The driest month (with the least rainfall) is February (71mm).
Average rainfall days in September
Acquarossa, Switzerland
- Average rainfall days in September: 20.9 days
The month with the highest number of rainy days is July (27.2 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Acquarossa, Switzerland
- Average snowfall in September: 6mm
The month with the highest snowfall is December (734mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Acquarossa, Switzerland
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Acquarossa, Switzerland
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is November (Average sunshine: 3h and 42min).
Average sunshine days in September
Acquarossa, Switzerland
- Average sunshine days in September: 6.7 days
The month with the most sunshine days is October (12.1 days).
The month with the least sunshine days is July (2.3 days).
Average UV index in September
Acquarossa, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, April, November and December (UV index 1).
Average cloud cover in September
Acquarossa, Switzerland
- Average cloud cover in September: 56
The months with the most cloud cover are March and April (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 50).
Average visibility in September
Acquarossa, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June and July (8km).
The months with the lowest visibility are January, February, March and April (5km).
