September weather forecast
Ponthaux, Switzerland

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September

Weather in September

September, the first month of the autumn in Ponthaux, is also an enjoyable month, with temperature in the range of an average high of 17.8°C (64°F) and an average low of 7.7°C (45.9°F).

Temperature

With the onset of September, the average high-temperature subtly recedes from August's pleasant 22.1°C (71.8°F) to an enjoyable 17.8°C (64°F). Throughout the month of September, Ponthaux observes an average nighttime temperature of 7.7°C (45.9°F).

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 7.1 days and typically collects 8mm (0.31") of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 33min.
On the first day of September in Ponthaux, sunrise is at 06:52 and sunset at 20:11. On the last day of the month, sunrise is at 07:29 and sunset at 19:13 CEST.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: In September, the UV index of 3 transforms into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Feb 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Ponthaux in September?
In Ponthaux, 17.8°C (64°F) is the average high-temperature and 7.7°C (45.9°F) is the average low-temperature during September.
What is the average humidity in September in Ponthaux?
In Ponthaux, Switzerland, the average relative humidity in September is 82%.
What is the driest month in Ponthaux?
The month with the least rainfall in Ponthaux is September, when the rain falls for 7.1 days and typically collects 8mm (0.31") of precipitation.
How many days does it rain in September in Ponthaux?
In Ponthaux, in September, it is raining for 7.1 days, with typically 8mm (0.31") of accumulated precipitation.
When it does not snow in Ponthaux?
In Ponthaux, Switzerland, snow does not fall in June through September.
Does it snow in Ponthaux in September?
In Ponthaux, Switzerland, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Ponthaux have in September?
In September, the average day length in Ponthaux is 12h and 33min.
When are sunrise and sunset in September in Ponthaux?
On the first day of September, sunrise is at 06:52 and sunset at 20:11. On the last day of the month, sunrise is at 07:29 and sunset at 19:13 CEST.
How long on average sun shines in September in Ponthaux?
In September, the average sunshine duration in Ponthaux is 8.6h.
How high is the UV index in September in Ponthaux?
In September, the average daily maximum UV index in Ponthaux is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASeptemberOND
Aug
September
Oct
Average high temperature
22.1°C
17.8°C
13.5°C
Average low temperature
11.2°C
7.7°C
4.7°C
Average pressure
1017.8mbar
1018.6mbar
1018.5mbar
Average wind speed
6.6km/h
7.7km/h
7.8km/h
Average max. wind speed
7.4km/h
8.2km/h
8.7km/h
Average wind speed gusts
10.5km/h
12.4km/h
13km/h
Average humidity
80%
82%
82%
Average rainfall
25mm
8mm
15mm
Average rainfall days
9.3
7.1
6.3
Average snowfall
0mm
0mm
1mm
Average snowfall days
0
0.1
0.3
Average daylight
14h 1min
12h 4min
10h 5min
Average sunshine
10h 2min
8h 4min
6h 4min
Average sunshine days
19.2
20.2
23.5
Average UV index
4
3
3
Average cloud cover
33%
37%
37%
Average visibility
8km
8km
8km
Average temperature in September
Ponthaux, Switzerland
  • Average high temperature in September: 17.8°C

The warmest months (with the highest average high temperature) are July and August (22.1°C).
The month with the lowest average high temperature is January (2.5°C).

  • Average low temperature in September: 7.7°C

The month with the highest average low temperature is July (11.3°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average pressure in September
Ponthaux, 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
Ponthaux, Switzerland
  • Average wind speed in September: 7.7km/h

The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is August (6.6km/h).

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

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and July (79%).

Average rainfall in September
Ponthaux, Switzerland
  • Average rainfall in September: 8mm

The wettest month (with the highest rainfall) is June (26mm).
The driest month (with the least rainfall) is September (8mm).

Average rainfall days in September
Ponthaux, Switzerland
  • Average rainfall days in September: 7.1 days

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (6.2 days).

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

The month with the highest snowfall is January (25mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Ponthaux, Switzerland
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Ponthaux, 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 6min).

Average sunshine days in September
Ponthaux, Switzerland
  • Average sunshine days in September: 20.2 days

The month with the most sunshine days is October (23.5 days).
The month with the least sunshine days is May (15.8 days).

Average UV index in September
Ponthaux, 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
Ponthaux, Switzerland
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).

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

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

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