September weather forecast
Bundtels, Switzerland

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September

Weather in September

The first month of the autumn, September, is still a comfortable month in Bundtels, Switzerland, with an average temperature fluctuating between 7.4°C (45.3°F) and 17.6°C (63.7°F).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's pleasant 21.9°C (71.4°F) to a comfortable 17.6°C (63.7°F). Throughout September, the temperature in Bundtels falls to an average low of 7.4°C (45.3°F).

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 16.5 days and typically collects 53mm (2.09") of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Bundtels is 12h and 33min.
On the first day of September in Bundtels, sunrise is at 06:51 and sunset at 20:10. On the last day of the month, sunrise is at 07:29 and sunset at 19:12 CEST.

Sunshine

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

UV index

The average daily maximum UV index in September in Bundtels is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 3 suggests this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Feb 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Bundtels?
September temperatures vary between a high-temperature of 17.6°C (63.7°F) and a low-temperature of 7.4°C (45.3°F).
What is the average humidity in September in Bundtels?
In September, the average relative humidity in Bundtels is 82%.
What is the driest month in Bundtels?
The month with the least rainfall in Bundtels is September, when the rain falls for 16.5 days and typically collects 53mm (2.09") of precipitation.
How much does it rain in Bundtels in September?
In Bundtels, in September, it is raining for 16.5 days, with typically 53mm (2.09") of accumulated precipitation.
When it does not snow in Bundtels?
June through September are months without snowfall.
Does it snow in Bundtels in September?
In Bundtels, Switzerland, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Bundtels have in September?
The average day length in September is 12h and 33min.
When are sunrise and sunset in September in Bundtels?
On the first day of September in Bundtels, sunrise is at 06:51 and sunset at 20:10. On the last day of the month, sunrise is at 07:29 and sunset at 19:12 CEST.
How many hours of sunshine does Bundtels have in September?
The average sunshine duration in September in Bundtels, Switzerland, is 8.7h.
How high is the UV index in September in Bundtels?
In Bundtels, Switzerland, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASeptemberOND
Aug
September
Oct
Average high temperature
21.9°C
17.6°C
13.3°C
Average low temperature
10.7°C
7.4°C
3.9°C
Average pressure
1017.8mbar
1018.6mbar
1018.5mbar
Average wind speed
6.3km/h
7.2km/h
7.3km/h
Average max. wind speed
7km/h
7.6km/h
8km/h
Average wind speed gusts
10km/h
11.6km/h
12.2km/h
Average humidity
79%
82%
81%
Average rainfall
104mm
53mm
65mm
Average rainfall days
20.8
16.5
13.4
Average snowfall
0mm
0mm
12mm
Average snowfall days
0
0
0.8
Average daylight
14h 1min
12h 4min
10h 5min
Average sunshine
10h 2min
8h 4min
6h 4min
Average sunshine days
7.1
10.3
14.6
Average UV index
4
3
3
Average cloud cover
32%
36%
36%
Average visibility
9km
8km
8km
Average temperature in September
Bundtels, Switzerland
  • Average high temperature in September: 17.6°C

The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (2.2°C).

  • Average low temperature in September: 7.4°C

The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-4.6°C).

Average pressure in September
Bundtels, Switzerland
  • Average pressure in September: 1018.6mbar

The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in September
Bundtels, Switzerland
  • Average wind speed in September: 7.2km/h

The windiest month (with the highest average wind speed) is February (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).

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

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (79%).

Average rainfall in September
Bundtels, Switzerland
  • Average rainfall in September: 53mm

The wettest month (with the highest rainfall) is June (117mm).
The driest month (with the least rainfall) is September (53mm).

Average rainfall days in September
Bundtels, Switzerland
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is May (23.1 days).
The month with the least rainy days is February (12.2 days).

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

The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Bundtels, 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 months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in September
Bundtels, Switzerland
  • Average sunshine days in September: 10.3 days

The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is June (4.3 days).

Average UV index in September
Bundtels, 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, November and December (UV index 2).

Average cloud cover in September
Bundtels, Switzerland
  • Average cloud cover in September: 36

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Bundtels, Switzerland
  • Average visibility in September: 8km

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

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