September weather forecast
Saint-Gein, France

September

Weather in September

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

Temperature

With the commencement of September, Saint-Gein records a moderate temperature decline, with the average high easing from August's moderately hot 28.5°C (83.3°F) to a still warm 25.1°C (77.2°F). A noticeable temperature swing characterizes Saint-Gein's September nights, dipping to an average of 12.9°C (55.2°F).

Humidity

In Saint-Gein, the average relative humidity in September is 72%.

Rainfall

In Saint-Gein, France, in September, it is raining for 11.7 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, in Saint-Gein, France, there are 177.5 rainfall days, and 528mm (20.79") of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 30min.
On the first day of September in Saint-Gein, 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 19:43 CEST.

Sunshine

The average sunshine in September in Saint-Gein is 8.6h.

UV index

In September, the average daily maximum UV index in Saint-Gein is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

What is the usual temperature for Saint-Gein in September?
The high-temperature, in September, in Saint-Gein, is 25.1°C (77.2°F), while the low-temperature averages to 12.9°C (55.2°F). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 32°C (89.6°F).
What is the average humidity in September in Saint-Gein?
In September, the average relative humidity is 72%.
How many days does it rain in September in Saint-Gein?
In September, the rain falls for 11.7 days. Throughout September, 33mm (1.3") of precipitation is accumulated.
When it does not snow in Saint-Gein?
In Saint-Gein, snow does not fall in April through November.
How many hours of daylight does Saint-Gein have in September?
In Saint-Gein, the average day length in September is 12h and 30min.
When are sunrise and sunset in September in Saint-Gein?
On the first day of September in Saint-Gein, France, 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 19:43 CEST.
How many hours of sunshine does Saint-Gein have in September?
In September, the average sunshine duration in Saint-Gein is 8.6h.
What is the UV index reading in September in Saint-Gein?
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Saint-Gein, France
Average temperature in September
Saint-Gein, 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 - Saint-Gein, France
Average pressure in September
Saint-Gein, 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 - Saint-Gein, France
Average wind speed in September
Saint-Gein, 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 - Saint-Gein, France
Average humidity in September
Saint-Gein, 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 - Saint-Gein, France
Average rainfall in September
Saint-Gein, 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 - Saint-Gein, France
Average rainfall days in September
Saint-Gein, 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 - Saint-Gein, France
Average snowfall in September
Saint-Gein, 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 - Saint-Gein, France
Average snowfall days in September
Saint-Gein, 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 - Saint-Gein, France
Average daylight in September /
Average sunshine in September
Saint-Gein, France
  • Average daylight in September: 12h and 3min

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 4min

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 - Saint-Gein, France
Average sunshine days in September
Saint-Gein, 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 - Saint-Gein, France
Average UV index in September
Saint-Gein, 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 - Saint-Gein, France
Average cloud cover in September
Saint-Gein, 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 - Saint-Gein, France
Average visibility in September
Saint-Gein, 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).

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