September weather forecastPalaiseau, France

September weather for Palaiseau, France: The month with the least rainfall in Palaiseau, France, is September, when the rain falls for 9.6 days and typically collects 18mm (0.71") of precipitation. The first month of the autumn, September, is also an agreeable month in Palaiseau, France, with an average temperature ranging between min 11.7°C (53.1°F) and max 20.9°C (69.6°F).

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Palaiseau, France, with an average temperature ranging between min 11.7°C (53.1°F) and max 20.9°C (69.6°F).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from a moderately hot 24.6°C (76.3°F) in August to a pleasant 20.9°C (69.6°F). The nighttime temperature in Palaiseau, during September, averages of 11.7°C (53.1°F).

Humidity

The average relative humidity in September in Palaiseau, France, is 72%.

Rainfall

September is the month with the least rainfall in Palaiseau. Rain falls for 9.6 days and accumulates 18mm (0.71") of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 35min.
On the first day of September in Palaiseau, France, sunrise is at 07:08 and sunset at 20:32. On the last day of the month, sunrise is at 07:49 and sunset at 19:31 CEST.

Sunshine

In Palaiseau, the average sunshine in September is 7.9h.

UV index

In Palaiseau, France, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

An average high-temperature, in September, in Palaiseau, is 20.9°C (69.6°F) and the average low-temperature is 11.7°C (53.1°F).

The average relative humidity in September in Palaiseau, France, is 72%.

The month with the least rainfall in Palaiseau, France, is September, when the rain falls for 9.6 days and typically collects 18mm (0.71") of precipitation.

In Palaiseau, during September, the rain falls for 9.6 days and regularly aggregates up to 18mm (0.71") of precipitation.

April through October are months without snowfall.

In September, the average day length in Palaiseau, France, is 12h and 35min.

On the first day of September, sunrise is at 07:08 and sunset at 20:32. On the last day of the month, sunrise is at 07:49 and sunset at 19:31 CEST.

In Palaiseau, the average sunshine duration in September is 7.9h.

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

  • Average high temperature in September: 20.9°C

The warmest month (with the highest average high temperature) is August (24.6°C).
The month with the lowest average high temperature is January (5.9°C).

  • Average low temperature in September: 11.7°C

The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).

Average pressure in September
Palaiseau, France

  • Average pressure in September: 1018.1mbar

The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).

Average wind speed in September
Palaiseau, France

  • Average wind speed in September: 10.4km/h

The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

Average humidity in September
Palaiseau, France

  • Average humidity in September: 72%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (68%).

Average rainfall in September
Palaiseau, France

  • Average rainfall in September: 18mm

The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is September (18mm).

Average rainfall days in September
Palaiseau, France

  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is September (9.6 days).

Average snowfall in September
Palaiseau, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (13mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Palaiseau, France

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (1.3 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
Palaiseau, France

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 7h and 54min

The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Palaiseau, France

  • Average sunshine days in September: 18.5 days

The months with the most sunshine days are March and September (18.5 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in September
Palaiseau, France

  • Average UV index in September: 4

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

Average cloud cover in September
Palaiseau, France

  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 37).

Average visibility in September
Palaiseau, 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).