September weather forecast
Saint-Symphorien-des-Bois, France

September

Weather in September

September, the first month of the autumn in Saint-Symphorien-des-Bois, is still a pleasant month, with temperature in the range of an average low of 10.1°C (50.2°F) and an average high of 20.4°C (68.7°F).

Temperature

Saint-Symphorien-des-Bois in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 24.6°C (76.3°F) in August to an agreeable 20.4°C (68.7°F). During the nights in September, Saint-Symphorien-des-Bois observes an average low-temperature of 10.1°C (50.2°F).

Humidity

The average relative humidity in September is 79%.

Rainfall

September is the month with the least rainfall in Saint-Symphorien-des-Bois. Rain falls for 12.5 days and accumulates 31mm (1.22") of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in Saint-Symphorien-des-Bois is 12h and 32min.
On the first day of the month, sunrise is at 07:03 and sunset at 20:21. On the last day of September, in Saint-Symphorien-des-Bois, sunrise is at 07:40 and sunset at 19:24 CEST.

Sunshine

In September, the average sunshine is 8.1h.

UV index

In September, the average daily maximum UV index in Saint-Symphorien-des-Bois 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 average person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise prevention - Warding off sunburn is urged. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What are September temperatures in Saint-Symphorien-des-Bois?
An average high-temperature, in September, in Saint-Symphorien-des-Bois, is 20.4°C (68.7°F) and the average low-temperature is 10.1°C (50.2°F).
What is the average humidity in September in Saint-Symphorien-des-Bois?
In September, the average relative humidity is 79%.
What is the driest month in Saint-Symphorien-des-Bois?
September is the month with the least rainfall in Saint-Symphorien-des-Bois. Rain falls for 12.5 days and accumulates 31mm (1.22") of precipitation.
How many days does it rain in September in Saint-Symphorien-des-Bois?
In Saint-Symphorien-des-Bois, in September, during 12.5 rainfall days, 31mm (1.22") of precipitation is typically accumulated.
When it does not snow in Saint-Symphorien-des-Bois?
May through September are months without snowfall in Saint-Symphorien-des-Bois, France.
Does it snow in Saint-Symphorien-des-Bois in September?
In Saint-Symphorien-des-Bois, France, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Saint-Symphorien-des-Bois have in September?
In September, the average day length is 12h and 32min.
What time are sunrise and sunset in September in Saint-Symphorien-des-Bois?
On the first day of September in Saint-Symphorien-des-Bois, France, sunrise is at 07:03 and sunset at 20:21. On the last day of the month, sunrise is at 07:40 and sunset at 19:24 CEST.
How long on average sun shines in September in Saint-Symphorien-des-Bois?
In Saint-Symphorien-des-Bois, France, the average sunshine duration in September is 8.1h.
How high is the UV index in September in Saint-Symphorien-des-Bois?
The average daily maximum UV index in September in Saint-Symphorien-des-Bois, France, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from 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
Saint-Symphorien-des-Bois, France
  • Average high temperature in September: 20.4°C

The warmest month (with the highest average high temperature) is August (24.6°C).
The month with the lowest average high temperature is January (4.8°C).

  • Average low temperature in September: 10.1°C

The month with the highest average low temperature is July (13.6°C).
The coldest month (with the lowest average low temperature) is February (-0.2°C).

Average pressure in September
Saint-Symphorien-des-Bois, France
  • Average pressure in September: 1018.7mbar

The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).

Average wind speed in September
Saint-Symphorien-des-Bois, France
  • Average wind speed in September: 8.4km/h

The windiest month (with the highest average wind speed) is February (12.5km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).

Average humidity in September
Saint-Symphorien-des-Bois, France
  • Average humidity in September: 79%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (75%).

Average rainfall in September
Saint-Symphorien-des-Bois, France
  • Average rainfall in September: 31mm

The wettest months (with the highest rainfall) are May and June (68mm).
The driest month (with the least rainfall) is September (31mm).

Average rainfall days in September
Saint-Symphorien-des-Bois, France
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is February (12 days).

Average snowfall in September
Saint-Symphorien-des-Bois, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (47mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Saint-Symphorien-des-Bois, France
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.1 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
Saint-Symphorien-des-Bois, France
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in September: 8h and 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).

Average sunshine days in September
Saint-Symphorien-des-Bois, France
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is June (7.8 days).

Average UV index in September
Saint-Symphorien-des-Bois, France
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in September
Saint-Symphorien-des-Bois, France
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Saint-Symphorien-des-Bois, France
  • Average visibility in September: 8km

The month with the highest visibility is August (9km).
The month with the lowest visibility is November (7km).

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