September weather forecast
Dietikon, Switzerland

September

Weather in September

September leads the transition from sun-drenched summer to cooler autumn in Dietikon. The high temperature eases off to 19.9°C (67.8°F), a noticeable drop from the torrid summer months. As the days shorten, they pave the way for brisk and cool autumn weather. With the fall equinox ushered in, leaf-peepers are treated to a spectacle of spectacular fall foliage. September subtly hints at the approaching fall season, making it a transitional period in the weather calendar of Dietikon.

Temperature

The arrival of September signals a subtle shift in temperature, down from a moderately hot 24.4°C (75.9°F) in August to a refreshing 19.9°C (67.8°F). Throughout September, an average low-temperature of 8.4°C (47.1°F) is experienced in Dietikon.

Humidity

In September, the average relative humidity in Dietikon, Switzerland, is 80%.

Rainfall

April and September are months with the least rain when the rain falls for 12.5 days and typically aggregates up to 38mm (1.5") of rain.

Snowfall

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

Daylight

In Dietikon, the average length of the day in September is 12h and 34min.
On the first day of the month, sunrise is at 06:45 and sunset at 20:06. On the last day of September, in Dietikon, sunrise is at 07:24 and sunset at 19:07 CEST.

Sunshine

The average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

What is the average September temperature in Dietikon?
In Dietikon, in September, the average high-temperature is 19.9°C (67.8°F), and the average low-temperature is 8.4°C (47.1°F).
What is the average humidity in September in Dietikon?
The average relative humidity in September is 80%.
What is the driest month in Dietikon?
April and September are months with the least rain in Dietikon when the rain falls for 12.5 days and typically aggregates up to 38mm (1.5") of rain.
How much does it rain in Dietikon in September?
In Dietikon, Switzerland, during September, the rain falls for 12.5 days and regularly aggregates up to 38mm (1.5") of precipitation.
When it does not snow in Dietikon?
In Dietikon, Switzerland, snow does not fall in June through September.
Does it snow in Dietikon in September?
In Dietikon, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Dietikon?
In Dietikon, Switzerland, the average day length in September is 12h and 34min.
When are sunrise and sunset in September in Dietikon?
On the first day of September in Dietikon, sunrise is at 06:45 and sunset at 20:06. On the last day of the month, sunrise is at 07:24 and sunset at 19:07 CEST.
How many hours of sunshine does Dietikon have in September?
In Dietikon, Switzerland, the average sunshine duration in September is 8.9h.
How high is the UV index in September in Dietikon?
In Dietikon, Switzerland, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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 - Dietikon, Switzerland
Average temperature in September
Dietikon, Switzerland
  • Average high temperature in September: 19.9°C

The warmest months (with the highest average high temperature) are July and August (24.4°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in September: 8.4°C

The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).

Average pressure in September - Dietikon, Switzerland
Average pressure in September
Dietikon, Switzerland
  • Average pressure in September: 1018.7mbar

The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).

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

The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).

Average humidity in September - Dietikon, Switzerland
Average humidity in September
Dietikon, Switzerland
  • Average humidity in September: 80%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall in September - Dietikon, Switzerland
Average rainfall in September
Dietikon, Switzerland
  • Average rainfall in September: 38mm

The wettest month (with the highest rainfall) is August (82mm).
The driest months (with the least rainfall) are April and September (38mm).

Average rainfall days in September - Dietikon, Switzerland
Average rainfall days in September
Dietikon, Switzerland
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.8 days).

Average snowfall in September - Dietikon, Switzerland
Average snowfall in September
Dietikon, Switzerland
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (232mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September - Dietikon, Switzerland
Average snowfall days in September
Dietikon, Switzerland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in September - Dietikon, Switzerland
Average sunshine days in September
Dietikon, Switzerland
  • Average sunshine days in September: 15 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (11 days).

Average UV index in September - Dietikon, Switzerland
Average UV index in September
Dietikon, Switzerland
  • Average UV index in September: 4

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

Average cloud cover in September - Dietikon, Switzerland
Average cloud cover in September
Dietikon, Switzerland
  • Average cloud cover in September: 36

The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September - Dietikon, Switzerland
Average visibility in September
Dietikon, Switzerland
  • Average visibility in September: 8km

The months with the highest visibility are April, July and August (9km).
The months with the lowest visibility are January and February (7km).

englishespañol中文
Share