September weather forecastCastandet, France

September

Weather in September

The first month of the autumn, September, is still a warm month in Castandet, France, with temperature in the range of an average high of 25.1°C (77.2°F) and an average low of 12.9°C (55.2°F).

Temperature

As August makes way for September, Castandet's average high-temperature eases from 28.5°C (83.3°F) to a still moderately hot 25.1°C (77.2°F). A stark contrast in day to night temperatures can be seen in September, with an average low-temperature of 12.9°C (55.2°F).

Humidity

The average relative humidity in September is 72%.

Rainfall

In Castandet, France, in September, during 11.7 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Castandet, during the entire year, the rain falls for 177.5 days and collects up to 528mm (20.79") of precipitation.

Snowfall

April through November are months without snowfall in Castandet.

Daylight

In September, the average length of the day is 12h and 30min.
On the first day of September in Castandet, sunrise is at 07:25 and sunset at 20:36. On the last day of the month, sunrise is at 07:58 and sunset at 19:44 CEST.

Sunshine

In September, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in September in Castandet is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

The high-temperature, in September, in Castandet, records 25.1°C (77.2°F), while the low-temperature is 12.9°C (55.2°F). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 32°C (89.6°F).

The average relative humidity in September is 72%.

In Castandet, France, in September, during 11.7 rainfall days, 33mm (1.3") of precipitation is typically accumulated.

April through November are months without snowfall in Castandet, France.

The average day length in September in Castandet is 12h and 30min.

In September, on the first day of the month, sunrise is at 07:25 and sunset at 20:36. On the last day of the month, in Castandet, France, sunrise is at 07:58 and sunset at 19:44 CEST.

In September, the average sunshine duration in Castandet, France, is 8.6h.

In Castandet, France, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Castandet, France

  • Average high temperature in September: 25.1°C

The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (9.8°C).

  • Average low temperature in September: 12.9°C

The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).

Average pressure in September
Castandet, France

  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is December (1021.6mbar).
The months with the lowest atmospheric pressure are April and November (1015.6mbar).

Average wind speed in September
Castandet, France

  • Average wind speed in September: 6.6km/h

The windiest month (with the highest average wind speed) is March (8.5km/h).
The calmest month (with the lowest average wind speed) is September (6.6km/h).

Average humidity in September
Castandet, France

  • Average humidity in September: 72%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Castandet, France

  • Average rainfall in September: 33mm

The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is August (28mm).

Average rainfall days in September
Castandet, France

  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is October (11.5 days).

Average snowfall in September
Castandet, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Castandet, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.1 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
Castandet, France

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The months with the least sunshine are January and November (Average sunshine: 5h and 0min).

Average sunshine days in September
Castandet, France

  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is May (10.5 days).

Average UV index in September
Castandet, France

  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 2).

Average cloud cover in September
Castandet, France

  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in September
Castandet, France

  • Average visibility in September: 8km

The months with the highest visibility are May and June (9km).
The month with the lowest visibility is January (7km).