September weather forecastCastelgaillard, France

September

Weather in September

The first month of the autumn, September, is still a warm month in Castelgaillard, France, with an average temperature fluctuating between 13.2°C (55.8°F) and 24.4°C (75.9°F).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's warm 27.8°C (82°F) to a still moderately hot 24.4°C (75.9°F). In September, Castelgaillard reports a consistent average low-temperature of 13.2°C (55.8°F) during the nights.

Humidity

In September, the average relative humidity in Castelgaillard is 68%.

Rainfall

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

Snowfall

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

Daylight

In Castelgaillard, France, the average length of the day in September is 12h and 30min.
On the first day of the month, sunrise is at 07:21 and sunset at 20:31. On the last day of September, in Castelgaillard, sunrise is at 07:53 and sunset at 19:39 CEST.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In Castelgaillard, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

Castelgaillard in September has an average high-temperature of 24.4°C (75.9°F) and an average low-temperature of 13.2°C (55.8°F). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 30°C (86°F).

In September, the average relative humidity is 68%.

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

In Castelgaillard, France, in September, during 9.9 rainfall days, 22mm (0.87") of precipitation is typically accumulated.

In Castelgaillard, France, snow does not fall in April through October.

In Castelgaillard, the average day length in September is 12h and 30min.

On the first day of September, sunrise is at 07:21 and sunset at 20:31. On the last day of the month, sunrise is at 07:53 and sunset at 19:39 CEST.

The average sunshine duration in September in Castelgaillard is 8.7h.

The average daily maximum UV index in September in Castelgaillard, France, is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, France

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 18min).
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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, 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
Castelgaillard, 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).