September weather forecastCastillonnès, France

September

Weather in September

September, the first month of the autumn in Castillonnès, is also a moderately hot month, with an average temperature fluctuating between 24.5°C (76.1°F) and 12.8°C (55°F).

Temperature

September's arrival aligns with a minor decrease in average high-temperatures, from August's 28°C (82.4°F) to a still warm 24.5°C (76.1°F). Castillonnès witnesses an average low-temperature of 12.8°C (55°F) throughout the month of September.

Humidity

The average relative humidity in September in Castillonnès is 70%.

Rainfall

In Castillonnès, during September, the rain falls for 9.6 days and regularly aggregates up to 25mm (0.98") of precipitation. In Castillonnès, during the entire year, the rain falls for 154.4 days and collects up to 490mm (19.29") of precipitation.

Snowfall

In Castillonnès, snow does not fall in April through November.

Daylight

The average length of the day in September in Castillonnès is 12h and 31min.
On the first day of September in Castillonnès, sunrise is at 07:20 and sunset at 20:34. On the last day of the month, sunrise is at 07:54 and sunset at 19:39 CEST.

Sunshine

In September, the average sunshine in Castillonnès is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

Castillonnès in September has an average high-temperature of 24.5°C (76.1°F) and an average low-temperature of 12.8°C (55°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is calculated to be 30°C (86°F).

In Castillonnès, the average relative humidity in September is 70%.

In Castillonnès, in September, it is raining for 9.6 days, with typically 25mm (0.98") of accumulated precipitation.

In Castillonnès, snow does not fall in April through November.

The average day length in September in Castillonnès is 12h and 31min.

On the first day of September in Castillonnès, sunrise is at 07:20 and sunset at 20:34. On the last day of the month, sunrise is at 07:54 and sunset at 19:39 CEST.

In September, the average sunshine duration in Castillonnès, France, is 8.5h.

In September, the average daily maximum UV index in Castillonnès is 5. A UV Index estimate of 3 to 5 represents 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Castillonnès, France

  • Average high temperature in September: 24.5°C

The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in September: 12.8°C

The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is February (2.4°C).

Average pressure in September
Castillonnès, France

  • Average pressure in September: 1018.3mbar

The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is November (1015.3mbar).

Average wind speed in September
Castillonnès, France

  • Average wind speed in September: 8.4km/h

The windiest months (with the highest average wind speed) are February and March (11.5km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).

Average humidity in September
Castillonnès, France

  • Average humidity in September: 70%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (67%).

Average rainfall in September
Castillonnès, France

  • Average rainfall in September: 25mm

The wettest month (with the highest rainfall) is November (59mm).
The driest month (with the least rainfall) is July (20mm).

Average rainfall days in September
Castillonnès, France

  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is September (9.6 days).

Average snowfall in September
Castillonnès, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Castillonnès, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 30min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and November (Average sunshine: 4h and 48min).

Average sunshine days in September
Castillonnès, France

  • Average sunshine days in September: 19.1 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in September
Castillonnès, France

  • Average UV index in September: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 2).

Average cloud cover in September
Castillonnès, France

  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Castillonnès, France

  • Average visibility in September: 9km

The months with the highest visibility are March, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, April, May, November and December (8km).