September weather forecast
Mézières, Switzerland

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Mézières, Switzerland, with an average temperature varying between 17.8°C (64°F) and 7.7°C (45.9°F).

Temperature

As August makes way for September, Mézières's average high-temperature eases from a pleasant 22.1°C (71.8°F) to a comfortable 17.8°C (64°F). In September, the average low-temperature is a chilly 7.7°C (45.9°F).

Humidity

In September, the average relative humidity 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

June through September are months without snowfall in Mézières.

Daylight

In September, the average length of the day in Mézières is 12h and 33min.
On the first day of September in Mézières, sunrise is at 06:53 and sunset at 20:11. On the last day of the month, sunrise is at 07:30 and sunset at 19:14 CEST.

Sunshine

In September, the average sunshine in Mézières is 8.6h.

UV index

In Mézières, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, a daily UV index of 3 turns into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Direct Sun exposure should be minimized especially during midday when radiation is most intense. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.

Frequently asked questions

What are September temperatures in Mézières?
The high-temperature, in September, in Mézières, records 17.8°C (64°F), while the low-temperature is 7.7°C (45.9°F).
What is the average humidity in September in Mézières?
The average relative humidity in September is 82%.
What is the driest month in Mézières?
The month with the least rainfall in Mézières 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 Mézières?
In September, in Mézières, Switzerland, the rain falls for 7.1 days. Throughout September, 8mm (0.31") of precipitation is accumulated.
When it does not snow in Mézières?
In Mézières, Switzerland, snow does not fall in June through September.
Does it snow in Mézières in September?
In Mézières, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Mézières have in September?
In September, the average day length in Mézières is 12h and 33min.
When are sunrise and sunset in September in Mézières?
In September, on the first day of the month, sunrise is at 06:53 and sunset at 20:11. On the last day of the month, in Mézières, Switzerland, sunrise is at 07:30 and sunset at 19:14 CEST.
How long on average sun shines in September in Mézières?
In Mézières, the average sunshine duration in September is 8.6h.
What is the UV index reading in September in Mézières?
In Mézières, Switzerland, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Mézières, Switzerland
Average temperature in September
Mézières, 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 - Mézières, Switzerland
Average pressure in September
Mézières, 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 - Mézières, Switzerland
Average wind speed in September
Mézières, 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 - Mézières, Switzerland
Average humidity in September
Mézières, 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 - Mézières, Switzerland
Average rainfall in September
Mézières, 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 - Mézières, Switzerland
Average rainfall days in September
Mézières, 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 - Mézières, Switzerland
Average snowfall in September
Mézières, 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 - Mézières, Switzerland
Average snowfall days in September
Mézières, 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 - Mézières, Switzerland
Average daylight in September /
Average sunshine in September
Mézières, Switzerland
  • Average daylight in September: 12h and 3min

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 - Mézières, Switzerland
Average sunshine days in September
Mézières, 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 - Mézières, Switzerland
Average UV index in September
Mézières, 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 - Mézières, Switzerland
Average cloud cover in September
Mézières, 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 - Mézières, Switzerland
Average visibility in September
Mézières, 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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