September weather forecastCastelnavet, France

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Castelnavet, France, with temperature in the range of an average high of 24.4°C (75.9°F) and an average low of 13.2°C (55.8°F).

Temperature

The arrival of September signals a subtle shift in temperature, down from a moderately hot 27.8°C (82°F) in August to a still warm 24.4°C (75.9°F). Castelnavet witnesses an average low-temperature of 13.2°C (55.8°F) throughout the month of September.

Humidity

The average relative humidity in September in Castelnavet, France, is 68%.

Rainfall

September is the month with the least rainfall in Castelnavet, France. Rain falls for 9.9 days and accumulates 22mm (0.87") of precipitation.

Snowfall

April through October are months without snowfall in Castelnavet.

Daylight

The average length of the day in September is 12h and 30min.
On the first day of the month, sunrise is at 07:23 and sunset at 20:34. On the last day of September, in Castelnavet, sunrise is at 07:56 and sunset at 19:42 CEST.

Sunshine

The average sunshine in September in Castelnavet is 8.7h.

UV index

In Castelnavet, France, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

The high-temperature, in September, in Castelnavet, records 24.4°C (75.9°F), while the low-temperature is 13.2°C (55.8°F). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 30°C (86°F).

The average relative humidity in September in Castelnavet is 68%.

September is the month with the least rainfall in Castelnavet, France. Rain falls for 9.9 days and accumulates 22mm (0.87") of precipitation.

In September, in Castelnavet, France, the rain falls for 9.9 days. Throughout September, 22mm (0.87") of precipitation is accumulated.

In Castelnavet, snow does not fall in April through October.

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

On the first day of September in Castelnavet, sunrise is at 07:23 and sunset at 20:34. On the last day of the month, sunrise is at 07:56 and sunset at 19:42 CEST.

In September, the average sunshine duration in Castelnavet, France, is 8.7h.

The average daily maximum UV index in September in Castelnavet is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Castelnavet, France

  • Average high temperature in September: 24.4°C

The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (9°C).

  • Average low temperature in September: 13.2°C

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).

Average pressure in September
Castelnavet, France

  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in September
Castelnavet, France

  • Average wind speed in September: 8.7km/h

The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is September (8.7km/h).

Average humidity in September
Castelnavet, France

  • Average humidity in September: 68%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (67%).

Average rainfall in September
Castelnavet, France

  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is May (52mm).
The driest month (with the least rainfall) is September (22mm).

Average rainfall days in September
Castelnavet, France

  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is September (9.9 days).

Average snowfall in September
Castelnavet, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Castelnavet, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Castelnavet, 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 42min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in September
Castelnavet, France

  • Average sunshine days in September: 18.2 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is April (12.7 days).

Average UV index in September
Castelnavet, France

  • Average UV index in September: 5

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

Average cloud cover in September
Castelnavet, France

  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in September
Castelnavet, France

  • Average visibility in September: 9km

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