September weather forecast
Ponte Brolla, Switzerland

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Ponte Brolla, Switzerland, with an average temperature ranging between max 16.5°C (61.7°F) and min 7.2°C (45°F).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's pleasant 20.8°C (69.4°F) to a refreshing 16.5°C (61.7°F). An average low-temperature of 7.2°C (45°F) is noted during the nights in September in Ponte Brolla.

Humidity

In Ponte Brolla, the average relative humidity in September is 79%.

Rainfall

In Ponte Brolla, in September, it is raining for 17.6 days, with typically 63mm (2.48") of accumulated precipitation. In Ponte Brolla, during the entire year, the rain falls for 200.8 days and collects up to 1253mm (49.33") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Ponte Brolla, the average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 06:46 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 September, the average sunshine is 9.4h.

UV index

In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 3 translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

What is the average September temperature in Ponte Brolla?
The high-temperature, in September, in Ponte Brolla, records 16.5°C (61.7°F), while the low-temperature is 7.2°C (45°F).
What is the average humidity in September in Ponte Brolla?
The average relative humidity in September is 79%.
How much does it rain in Ponte Brolla in September?
In September, in Ponte Brolla, the rain falls for 17.6 days. Throughout September, 63mm (2.48") of precipitation is accumulated.
When it does not snow in Ponte Brolla?
June through September are months without snowfall in Ponte Brolla, Switzerland.
Does it snow in Ponte Brolla in September?
In Ponte Brolla, Switzerland, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Ponte Brolla?
The average day length in September is 12h and 32min.
When are sunrise and sunset in September in Ponte Brolla?
On the first day of September in Ponte Brolla, sunrise is at 06:46 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 Ponte Brolla?
The average sunshine duration in September in Ponte Brolla, Switzerland, is 9.4h.
How high is the UV index in September in Ponte Brolla?
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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 - Ponte Brolla, Switzerland
Average temperature in September
Ponte Brolla, Switzerland
  • Average high temperature in September: 16.5°C

The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (0.9°C).

  • Average low temperature in September: 7.2°C

The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is January (-5.9°C).

Average pressure in September - Ponte Brolla, Switzerland
Average pressure in September
Ponte Brolla, Switzerland
  • Average pressure in September: 1017.9mbar

The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).

Average wind speed in September - Ponte Brolla, Switzerland
Average wind speed in September
Ponte Brolla, Switzerland
  • Average wind speed in September: 6.3km/h

The windiest month (with the highest average wind speed) is February (7.4km/h).
The calmest month (with the lowest average wind speed) is November (5.8km/h).

Average humidity in September - Ponte Brolla, Switzerland
Average humidity in September
Ponte Brolla, Switzerland
  • Average humidity in September: 79%

The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is July (76%).

Average rainfall in September - Ponte Brolla, Switzerland
Average rainfall in September
Ponte Brolla, Switzerland
  • Average rainfall in September: 63mm

The wettest month (with the highest rainfall) is November (164mm).
The driest month (with the least rainfall) is January (45mm).

Average rainfall days in September - Ponte Brolla, Switzerland
Average rainfall days in September
Ponte Brolla, Switzerland
  • Average rainfall days in September: 17.6 days

The month with the highest number of rainy days is July (25.5 days).
The months with the least rainy days are February and December (8.6 days).

Average snowfall in September - Ponte Brolla, Switzerland
Average snowfall in September
Ponte Brolla, Switzerland
  • Average snowfall in September: 0mm

The month with the highest snowfall is November (334mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September - Ponte Brolla, Switzerland
Average snowfall days in September
Ponte Brolla, Switzerland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Ponte Brolla, Switzerland
Average daylight in September /
Average sunshine in September
Ponte Brolla, Switzerland
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 24min).

Average sunshine days in September - Ponte Brolla, Switzerland
Average sunshine days in September
Ponte Brolla, Switzerland
  • Average sunshine days in September: 9.7 days

The month with the most sunshine days is October (14.9 days).
The month with the least sunshine days is June (3.1 days).

Average UV index in September - Ponte Brolla, Switzerland
Average UV index in September
Ponte Brolla, Switzerland
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September - Ponte Brolla, Switzerland
Average cloud cover in September
Ponte Brolla, Switzerland
  • Average cloud cover in September: 33

The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September - Ponte Brolla, Switzerland
Average visibility in September
Ponte Brolla, Switzerland
  • Average visibility in September: 8km

The months with the highest visibility are April, May, June, July, August and December (9km).
The months with the lowest visibility are January, February, March, September, October and November (8km).

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