September weather forecast
Calpiogna, Switzerland

September

Weather in September

September, the first month of the autumn in Calpiogna, is also a fresh month, with an average temperature varying between 11.6°C (52.9°F) and 2.8°C (37°F).

Temperature

As August transitions into September, Calpiogna sees a gentle drop in the average high-temperature, transitioning from a mild 15.8°C (60.4°F) to a cool 11.6°C (52.9°F). In Calpiogna, the average low-temperature during the month of September is an icy 2.8°C (37°F).

Humidity

In Calpiogna, the average relative humidity in September is 85%.

Rainfall

In September, in Calpiogna, Switzerland, the rain falls for 20.9 days. Throughout September, 94mm (3.7") of precipitation is accumulated. Throughout the year, there are 200.1 rainfall days, and 1619mm (63.74") of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 6mm (0.24") of snow. Throughout the year, in Calpiogna, Switzerland, there are 114.5 snowfall days, and 3819mm (150.35") of snow is accumulated.

Daylight

In September, the average length of the day in Calpiogna is 12h and 33min.
On the first day of September in Calpiogna, sunrise is at 06:45 and sunset at 20:03. On the last day of the month, sunrise is at 07:22 and sunset at 19:06 CEST.

Sunshine

In Calpiogna, the average sunshine in September is 7.4h.

UV index

The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 during September translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

What are the temperatures in Calpiogna in September?
The average high-temperature, in September, in Calpiogna, is 11.6°C (52.9°F), while the average low-temperature is 2.8°C (37°F).
What is the average humidity in September in Calpiogna?
The average relative humidity in September in Calpiogna is 85%.
How much does it rain in Calpiogna in September?
In Calpiogna, during September, the rain falls for 20.9 days and regularly aggregates up to 94mm (3.7") of precipitation.
When does it start to snow in Calpiogna?
September is the first month it typically snows in Calpiogna, Switzerland. Throughout September, in the average 0.4 snowfall days, it receives 6mm (0.24") of snow.
What is the average length of the day in September in Calpiogna?
In Calpiogna, the average day length in September is 12h and 33min.
When is the sunrise / sunset in September in Calpiogna?
On the first day of September, sunrise is at 06:45 and sunset at 20:03. On the last day of the month, sunrise is at 07:22 and sunset at 19:06 CEST.
How long on average sun shines in September in Calpiogna?
The average sunshine duration in September in Calpiogna is 7.4h.
How high is the UV index in September in Calpiogna?
In September, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Calpiogna, 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
Calpiogna, 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
Calpiogna, 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
Calpiogna, 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
Calpiogna, 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
Calpiogna, 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
Calpiogna, 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
Calpiogna, 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
Calpiogna, Switzerland
  • Average daylight in September: 12h and 3min

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 2min

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
Calpiogna, 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
Calpiogna, 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
Calpiogna, 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
Calpiogna, 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).

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