September weather forecastOberaach, Switzerland

September

Weather in September

September, the first month of the autumn in Oberaach, is still a comfortable month, with an average temperature varying between 18.6°C (65.5°F) and 8.6°C (47.5°F).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from a warm 23°C (73.4°F) in August to a comfortable 18.6°C (65.5°F). The average temperature during September nights dips to a frosty 8.6°C (47.5°F).

Humidity

In Oberaach, the average relative humidity in September is 78%.

Rainfall

In Oberaach, in September, during 14.3 rainfall days, 57mm (2.24") of precipitation is typically accumulated. In Oberaach, during the entire year, the rain falls for 177.8 days and collects up to 1006mm (39.61") of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 34min.
On the first day of the month, sunrise is at 06:42 and sunset at 20:03. On the last day of September, in Oberaach, Switzerland, sunrise is at 07:21 and sunset at 19:04 CEST.

Sunshine

The average sunshine in September in Oberaach is 9.2h.

UV index

The average daily maximum UV index in September in Oberaach is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Act with care - The need to guard against sun damage is communicated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

Frequently asked questions

September temperatures vary between a high-temperature of 18.6°C (65.5°F) and a low-temperature of 8.6°C (47.5°F).

In September, the average relative humidity in Oberaach, Switzerland, is 78%.

In Oberaach, in September, during 14.3 rainfall days, 57mm (2.24") of precipitation is typically accumulated.

June through September are months without snowfall in Oberaach, Switzerland.

In Oberaach, Switzerland, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length in Oberaach, Switzerland, is 12h and 34min.

On the first day of September, sunrise is at 06:42 and sunset at 20:03. On the last day of the month, sunrise is at 07:21 and sunset at 19:04 CEST.

In September, the average sunshine duration in Oberaach, Switzerland, is 9.2h.

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Oberaach, Switzerland

  • Average high temperature in September: 18.6°C

The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.9°C).

  • Average low temperature in September: 8.6°C

The months with the highest average low temperature are July and August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).

Average pressure in September
Oberaach, Switzerland

  • Average pressure in September: 1018.6mbar

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
Oberaach, Switzerland

  • Average wind speed in September: 6.9km/h

The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).

Average humidity in September
Oberaach, Switzerland

  • Average humidity in September: 78%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (75%).

Average rainfall in September
Oberaach, Switzerland

  • Average rainfall in September: 57mm

The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is April (52mm).

Average rainfall days in September
Oberaach, Switzerland

  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (9.5 days).

Average snowfall in September
Oberaach, Switzerland

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (353mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Oberaach, Switzerland

  • Average snowfall days in September: 0.1 days

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

Average daylight in September /
Average sunshine in September
Oberaach, Switzerland

  • Average daylight in September: 12h and 36min

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: 9h and 12min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Oberaach, Switzerland

  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is July (6.6 days).

Average UV index in September
Oberaach, 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
Oberaach, Switzerland

  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Oberaach, Switzerland

  • Average visibility in September: 8km

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