September weather forecastSornac, France

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Sornac, France, with an average temperature fluctuating between 21.7°C (71.1°F) and 9.9°C (49.8°F).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's warm 25.7°C (78.3°F) to a pleasant 21.7°C (71.1°F). Throughout the month of September, the average temperature in Sornac, France, dips to a chilly 9.9°C (49.8°F) at night.

Humidity

In Sornac, the average relative humidity in September is 75%.

Rainfall

The months with the least rainfall are July and September Rain falls for 11.4 days and accumulates 35mm (1.38") of rain.

Snowfall

In Sornac, France, snow does not fall in April, June through September.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of the month, sunrise is at 07:13 and sunset at 20:29. On the last day of September, sunrise is at 07:48 and sunset at 19:33 CEST.

Sunshine

In September, the average sunshine in Sornac is 8.3h.

UV index

The average daily maximum UV index in September in Sornac is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 4 in September leads to these guidelines:
Exercise prevention - Warding off sunburn is urged. When the Sun is at its strongest around midday, find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

September temperatures in Sornac, France, vary between a high-temperature of 21.7°C (71.1°F) and a low-temperature of 9.9°C (49.8°F).

In Sornac, France, the average relative humidity in September is 75%.

July and September are months with the least rain in Sornac when the rain falls for 11.4 days and typically aggregates up to 35mm (1.38") of rain.

In September, in Sornac, France, the rain falls for 11.4 days. Throughout September, 35mm (1.38") of precipitation is accumulated.

In Sornac, France, snow does not fall in April, June through September.

In Sornac, in September, it doesn't snow. In October, it regularly snows.

In Sornac, the average day length in September is 12h and 32min.

On the first day of September, sunrise is at 07:13 and sunset at 20:29. On the last day of the month, sunrise is at 07:48 and sunset at 19:33 CEST.

In September, the average sunshine duration in Sornac is 8.3h.

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Sornac, France

  • Average high temperature in September: 21.7°C

The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (6.3°C).

  • Average low temperature in September: 9.9°C

The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (-0.3°C).

Average pressure in September
Sornac, France

  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).

Average wind speed in September
Sornac, France

  • Average wind speed in September: 7.2km/h

The windiest month (with the highest average wind speed) is February (9.8km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).

Average humidity in September
Sornac, France

  • Average humidity in September: 75%

The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is August (71%).

Average rainfall in September
Sornac, France

  • Average rainfall in September: 35mm

The wettest month (with the highest rainfall) is November (84mm).
The driest months (with the least rainfall) are July and September (35mm).

Average rainfall days in September
Sornac, France

  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is September (11.4 days).

Average snowfall in September
Sornac, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (42mm).
The months with the least snowfall are April, June, July, August and September (0mm).

Average snowfall days in September
Sornac, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Sornac, France

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 8h and 18min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January and November (Average sunshine: 4h and 12min).

Average sunshine days in September
Sornac, France

  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is May (10.1 days).

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

Average cloud cover in September
Sornac, France

  • Average cloud cover in September: 35

The month with the most cloud cover is November (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Sornac, France

  • Average visibility in September: 8km

The months with the highest visibility are March, April, May, June, July, August and September (8km).
The months with the lowest visibility are January, February, October, November and December (7km).