September weather forecast
Grèges, France

September

Weather in September

The first month of the autumn, September, is also an enjoyable month in Grèges, France, with an average temperature ranging between max 17.9°C (64.2°F) and min 13.9°C (57°F).

Temperature

At the start of September, Grèges's average high-temperature reaches a still enjoyable 17.9°C (64.2°F), subtly different from the preceding month. A consistent average low of 13.9°C (57°F) is noted in Grèges throughout September, only a small step down from its daytime high.

Humidity

September is the least humid month in Grèges, with an average relative humidity of 79%.

Rainfall

In Grèges, in September, it is raining for 13.3 days, with typically 27mm (1.06") of accumulated precipitation. In Grèges, France, during the entire year, the rain falls for 177.4 days and collects up to 428mm (16.85") of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 37min.
On the first day of the month, sunrise is at 07:11 and sunset at 20:39. On the last day of September, in Grèges, sunrise is at 07:54 and sunset at 19:35 CEST.

Sunshine

The average sunshine in September in Grèges is 7.4h.

UV index

In Grèges, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What are the temperatures in Grèges in September?
An average high-temperature, in September, in Grèges, is 17.9°C (64.2°F) and the average low-temperature is 13.9°C (57°F).
What is the least humid month in Grèges?
The least humid month in Grèges, France, is September, with an average relative humidity of 79%.
What is the average humidity in September in Grèges?
The average relative humidity in September is 79%.
How much does it rain in Grèges in September?
In September, in Grèges, the rain falls for 13.3 days. Throughout September, 27mm (1.06") of precipitation is accumulated.
When it does not snow in Grèges?
In Grèges, France, snow does not fall in April through October.
What is the average length of the day in September in Grèges?
In Grèges, France, the average day length in September is 12h and 37min.
When is the sunrise / sunset in September in Grèges?
On the first day of September, sunrise is at 07:11 and sunset at 20:39. On the last day of the month, sunrise is at 07:54 and sunset at 19:35 CEST.
How many hours of sunshine does Grèges have in September?
In September, the average sunshine duration in Grèges is 7.4h.
What is the UV index reading in September in Grèges?
In September, the average daily maximum UV index in Grèges, France, is 4. A UV Index estimate of 3 to 5 represents 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Grèges, France
  • Average high temperature in September: 17.9°C

The warmest month (with the highest average high temperature) is August (19.5°C).
The months with the lowest average high temperature are January and February (7.3°C).

  • Average low temperature in September: 13.9°C

The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).

Average pressure in September
Grèges, France
  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).

Average wind speed in September
Grèges, France
  • Average wind speed in September: 19.2km/h

The windiest month (with the highest average wind speed) is December (27.5km/h).
The calmest month (with the lowest average wind speed) is July (17.3km/h).

Average humidity in September
Grèges, France
  • Average humidity in September: 79%

The month with the highest relative humidity is June (84%).
The month with the lowest relative humidity is September (79%).

Average rainfall in September
Grèges, France
  • Average rainfall in September: 27mm

The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (23mm).

Average rainfall days in September
Grèges, France
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is October (16.7 days).
The month with the least rainy days is April (12.4 days).

Average snowfall in September
Grèges, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Grèges, France
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Grèges, France
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in September: 7h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and November (Average sunshine: 4h and 0min).

Average sunshine days in September
Grèges, France
  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is April (14.6 days).
The month with the least sunshine days is November (10.4 days).

Average UV index in September
Grèges, 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
Grèges, France
  • Average cloud cover in September: 40

The months with the most cloud cover are November and December (Cloud cover 60).
The months with the least cloud cover are April, July and August (Cloud cover 39).

Average visibility in September
Grèges, France
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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