September weather forecastChâteaudun, France

September

Weather in September

September, the first month of the autumn in Châteaudun, is also an agreeable month, with an average temperature fluctuating between 20.7°C (69.3°F) and 11.4°C (52.5°F).

Temperature

With the onset of September, the average high-temperature subtly recedes from August's moderately hot 24.1°C (75.4°F) to a pleasant 20.7°C (69.3°F). Throughout September, an average low-temperature of 11.4°C (52.5°F) is expected.

Humidity

The average relative humidity in September is 73%.

Rainfall

September is the month with the least rainfall in Châteaudun, France. Rain falls for 10.1 days and accumulates 16mm (0.63") of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 34min.
On the first day of the month, sunrise is at 07:13 and sunset at 20:35. On the last day of September, in Châteaudun, sunrise is at 07:53 and sunset at 19:35 CEST.

Sunshine

The average sunshine in September in Châteaudun, France, is 7.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the UV index of 4 transforms into the following advice:
Exercise prevention - Warding off sunburn is urged. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

The high-temperature in Châteaudun, France, during September is 20.7°C (69.3°F) and the low-temperature is 11.4°C (52.5°F).

The average relative humidity in September in Châteaudun is 73%.

September is the month with the least rainfall in Châteaudun, France. Rain falls for 10.1 days and accumulates 16mm (0.63") of precipitation.

In Châteaudun, France, in September, during 10.1 rainfall days, 16mm (0.63") of precipitation is typically accumulated.

April through October are months without snowfall.

In September, the average day length in Châteaudun is 12h and 34min.

On the first day of September in Châteaudun, France, sunrise is at 07:13 and sunset at 20:35. On the last day of the month, sunrise is at 07:53 and sunset at 19:35 CEST.

In Châteaudun, the average sunshine duration in September is 7.4h.

The average daily maximum UV index in September in Châteaudun is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Châteaudun, France

  • Average high temperature in September: 20.7°C

The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (6°C).

  • Average low temperature in September: 11.4°C

The month with the highest average low temperature is August (14.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).

Average pressure in September
Châteaudun, France

  • Average pressure in September: 1018.1mbar

The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).

Average wind speed in September
Châteaudun, France

  • Average wind speed in September: 11.6km/h

The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).

Average humidity in September
Châteaudun, France

  • Average humidity in September: 73%

The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Châteaudun, France

  • Average rainfall in September: 16mm

The wettest month (with the highest rainfall) is June (49mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in September
Châteaudun, France

  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is September (10.1 days).

Average snowfall in September
Châteaudun, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Châteaudun, France

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (2 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
Châteaudun, France

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 7h and 24min

The months with the most sunshine are July and August (Average sunshine: 8h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in September
Châteaudun, France

  • Average sunshine days in September: 17.7 days

The months with the most sunshine days are September and October (17.7 days).
The month with the least sunshine days is June (9.4 days).

Average UV index in September
Châteaudun, 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
Châteaudun, France

  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 39).

Average visibility in September
Châteaudun, France

  • Average visibility in September: 9km

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