September weather forecastChâlus, France

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Châlus, France, with temperature in the range of an average low of 10.2°C (50.4°F) and an average high of 21.5°C (70.7°F).

Temperature

September brings a slight decrease in temperature, down from a warm 25.2°C (77.4°F) in August to a pleasant 21.5°C (70.7°F). The nighttime temperature dips to a cool 10.2°C (50.4°F) on average during September.

Humidity

The average relative humidity in September in Châlus is 75%.

Rainfall

In September, the rain falls for 10.2 days. Throughout September, 28mm (1.1") of precipitation is accumulated. In Châlus, during the entire year, the rain falls for 170.5 days and collects up to 577mm (22.72") of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 07:17 and sunset at 20:33. On the last day of the month, sunrise is at 07:53 and sunset at 19:38 CEST.

Sunshine

In Châlus, the average sunshine in September is 8.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

The high-temperature in Châlus during September is 21.5°C (70.7°F) and the low-temperature is 10.2°C (50.4°F).

In September, the average relative humidity is 75%.

In Châlus, during September, the rain falls for 10.2 days and regularly aggregates up to 28mm (1.1") of precipitation.

May through September are months without snowfall.

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

The average day length in September is 12h and 32min.

On the first day of September, sunrise is at 07:17 and sunset at 20:33. On the last day of the month, sunrise is at 07:53 and sunset at 19:38 CEST.

In Châlus, the average sunshine duration in September is 8.1h.

In September, the average daily maximum UV index in Châlus is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Châlus, France

  • Average high temperature in September: 21.5°C

The warmest month (with the highest average high temperature) is August (25.2°C).
The month with the lowest average high temperature is January (6.4°C).

  • Average low temperature in September: 10.2°C

The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is February (0.4°C).

Average pressure in September
Châlus, France

  • Average pressure in September: 1018.3mbar

The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is November (1014.9mbar).

Average wind speed in September
Châlus, France

  • Average wind speed in September: 8.7km/h

The windiest month (with the highest average wind speed) is February (13.2km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).

Average humidity in September
Châlus, France

  • Average humidity in September: 75%

The months with the highest relative humidity are November and December (89%).
The month with the lowest relative humidity is August (73%).

Average rainfall in September
Châlus, France

  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is July (26mm).

Average rainfall days in September
Châlus, France

  • Average rainfall days in September: 10.2 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is September (10.2 days).

Average snowfall in September
Châlus, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (39mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Châlus, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.6 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
Châlus, 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 6min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Châlus, France

  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is November (10.2 days).

Average UV index in September
Châlus, 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
Châlus, France

  • Average cloud cover in September: 36

The months with the most cloud cover are January and November (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Châlus, France

  • Average visibility in September: 8km

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