September weather forecast
Kerns, Switzerland

September

Weather in September

September, the first month of the autumn in Kerns, is also a moderate month, with an average temperature fluctuating between 14.8°C (58.6°F) and 5.3°C (41.5°F).

Temperature

The arrival of September suggests a slight decrease in the average high-temperature, moving from a comfortable 18.9°C (66°F) in August to a mild 14.8°C (58.6°F). The low-temperature average for Kerns during September stands at an icy 5.3°C (41.5°F).

Humidity

In Kerns, the average relative humidity in September is 82%.

Rainfall

The month with the least rainfall is September, when the rain falls for 9.8 days and typically collects 16mm (0.63") of precipitation.

Snowfall

In Kerns, snow does not fall in June through September.

Daylight

In Kerns, the average length of the day in September is 12h and 33min.
On the first day of the month, sunrise is at 06:47 and sunset at 20:06. On the last day of September, sunrise is at 07:24 and sunset at 19:08 CEST.

Sunshine

In Kerns, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 3 during September translates into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

What is the usual temperature for Kerns in September?
During September, Kerns experiences an average high-temperature of 14.8°C (58.6°F) and a low-temperature of 5.3°C (41.5°F).
What is the average humidity in September in Kerns?
In Kerns, the average relative humidity in September is 82%.
What is the driest month in Kerns?
September is the month with the least rainfall in Kerns. Rain falls for 9.8 days and accumulates 16mm (0.63") of precipitation.
How much does it rain in Kerns in September?
In September, in Kerns, Switzerland, the rain falls for 9.8 days. Throughout September, 16mm (0.63") of precipitation is accumulated.
When it does not snow in Kerns?
In Kerns, snow does not fall in June through September.
Does it snow in Kerns in September?
In Kerns, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Kerns?
In Kerns, Switzerland, the average day length in September is 12h and 33min.
What time are sunrise and sunset in September in Kerns?
In September, on the first day of the month, sunrise is at 06:47 and sunset at 20:06. On the last day of the month, in Kerns, sunrise is at 07:24 and sunset at 19:08 CEST.
How many hours of sunshine does Kerns have in September?
In September, the average sunshine duration in Kerns is 8.7h.
What is the UV index reading in September in Kerns?
In Kerns, the average daily maximum UV index in September 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
Kerns, Switzerland
  • Average high temperature in September: 14.8°C

The warmest month (with the highest average high temperature) is August (18.9°C).
The month with the lowest average high temperature is January (-0.6°C).

  • Average low temperature in September: 5.3°C

The month with the highest average low temperature is August (8.6°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).

Average pressure in September
Kerns, Switzerland
  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in September
Kerns, Switzerland
  • Average wind speed in September: 5.8km/h

The windiest month (with the highest average wind speed) is December (8.1km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).

Average humidity in September
Kerns, Switzerland
  • Average humidity in September: 82%

The months with the highest relative humidity are February and March (89%).
The months with the lowest relative humidity are July and August (80%).

Average rainfall in September
Kerns, Switzerland
  • Average rainfall in September: 16mm

The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in September
Kerns, Switzerland
  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in September
Kerns, Switzerland
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Kerns, Switzerland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Kerns, Switzerland
  • Average daylight in September: 12h and 4min

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 36min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
Kerns, Switzerland
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in September
Kerns, Switzerland
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).

Average cloud cover in September
Kerns, Switzerland
  • Average cloud cover in September: 38

The months with the most cloud cover are February and May (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 36).

Average visibility in September
Kerns, Switzerland
  • Average visibility in September: 7km

The months with the highest visibility are April, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March, May and September (7km).

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