September weather forecast
Boult-aux-Bois, France

September

Weather in September

September, the first month of the autumn in Boult-aux-Bois, is also an enjoyable month, with an average temperature fluctuating between 9.5°C (49.1°F) and 18.5°C (65.3°F).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a pleasant 22.3°C (72.1°F) in August to a comfortable 18.5°C (65.3°F). In September, Boult-aux-Bois records an average nighttime temperature of 9.5°C (49.1°F).

Humidity

In Boult-aux-Bois, the average relative humidity in September is 81%.

Rainfall

In Boult-aux-Bois, France, during September, the rain falls for 12.8 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, there are 190 rainfall days, and 635mm (25") of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Boult-aux-Bois.

Daylight

In Boult-aux-Bois, the average length of the day in September is 12h and 36min.
On the first day of September in Boult-aux-Bois, sunrise is at 06:57 and sunset at 20:23. On the last day of the month, sunrise is at 07:39 and sunset at 19:21 CEST.

Sunshine

The average sunshine in September in Boult-aux-Bois, France, is 7.7h.

UV index

In Boult-aux-Bois, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

What is the average September temperature in Boult-aux-Bois?
The high-temperature, in September, in Boult-aux-Bois, records 18.5°C (65.3°F), while the low-temperature is 9.5°C (49.1°F).
What is the average humidity in September in Boult-aux-Bois?
The average relative humidity in September in Boult-aux-Bois, France, is 81%.
How many days does it rain in September in Boult-aux-Bois?
In Boult-aux-Bois, in September, it is raining for 12.8 days, with typically 38mm (1.5") of accumulated precipitation.
When it does not snow in Boult-aux-Bois?
May through September are months without snowfall in Boult-aux-Bois.
Does it snow in Boult-aux-Bois in September?
In Boult-aux-Bois, France, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Boult-aux-Bois?
The average day length in September is 12h and 36min.
When are sunrise and sunset in September in Boult-aux-Bois?
In September, on the first day of the month, sunrise is at 06:57 and sunset at 20:23. On the last day of the month, sunrise is at 07:39 and sunset at 19:21 CEST.
How long on average sun shines in September in Boult-aux-Bois?
In Boult-aux-Bois, the average sunshine duration in September is 7.7h.
What is the UV index intensity in September in Boult-aux-Bois?
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Boult-aux-Bois, France
Average temperature in September
Boult-aux-Bois, France
  • Average high temperature in September: 18.5°C

The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (3.9°C).

  • Average low temperature in September: 9.5°C

The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).

Average pressure in September - Boult-aux-Bois, France
Average pressure in September
Boult-aux-Bois, France
  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).

Average wind speed in September - Boult-aux-Bois, France
Average wind speed in September
Boult-aux-Bois, France
  • Average wind speed in September: 10.3km/h

The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).

Average humidity in September - Boult-aux-Bois, France
Average humidity in September
Boult-aux-Bois, France
  • Average humidity in September: 81%

The month with the highest relative humidity is December (92%).
The month with the lowest relative humidity is August (78%).

Average rainfall in September - Boult-aux-Bois, France
Average rainfall in September
Boult-aux-Bois, France
  • Average rainfall in September: 38mm

The wettest month (with the highest rainfall) is December (80mm).
The driest month (with the least rainfall) is April (35mm).

Average rainfall days in September - Boult-aux-Bois, France
Average rainfall days in September
Boult-aux-Bois, France
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is December (18.4 days).
The month with the least rainy days is September (12.8 days).

Average snowfall in September - Boult-aux-Bois, France
Average snowfall in September
Boult-aux-Bois, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (56mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September - Boult-aux-Bois, France
Average snowfall days in September
Boult-aux-Bois, France
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Boult-aux-Bois, France
Average daylight in September /
Average sunshine in September
Boult-aux-Bois, France
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in September: 7h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).

Average sunshine days in September - Boult-aux-Bois, France
Average sunshine days in September
Boult-aux-Bois, France
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is December (9.5 days).

Average UV index in September - Boult-aux-Bois, France
Average UV index in September
Boult-aux-Bois, France
  • 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 - Boult-aux-Bois, France
Average cloud cover in September
Boult-aux-Bois, France
  • Average cloud cover in September: 42

The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility in September - Boult-aux-Bois, France
Average visibility in September
Boult-aux-Bois, France
  • 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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