September weather forecast
Saint-Palais-de-Négrignac, France

September

Weather in September

The first month of the autumn, September, is still a warm month in Saint-Palais-de-Négrignac, France, with an average temperature varying between 12.9°C (55.2°F) and 23.5°C (74.3°F).

Temperature

Saint-Palais-de-Négrignac experiences a subtle adjustment in high-temperatures to a still moderately hot 23.5°C (74.3°F) with the onset of September, maintaining near parity with August's 26.3°C (79.3°F). Saint-Palais-de-Négrignac cools down to an average low-temperature of 12.9°C (55.2°F) throughout the month of September.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 70%.

Rainfall

In Saint-Palais-de-Négrignac, during September, the rain falls for 10.1 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, in Saint-Palais-de-Négrignac, there are 171.4 rainfall days, and 583mm (22.95") of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

In Saint-Palais-de-Négrignac, the average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 07:23 and sunset at 20:38. On the last day of the month, sunrise is at 07:58 and sunset at 19:42 CEST.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In Saint-Palais-de-Négrignac, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 4 during September leads to these advisories:
Prioritize safety - Suggestions to prevent sun damage are offered. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

What are the temperatures in September?
In September, in Saint-Palais-de-Négrignac, the average high-temperature is 23.5°C (74.3°F), and the average low-temperature is 12.9°C (55.2°F).
What are the least humid months?
August and September, with an average relative humidity of 70%, are the least humid months.
What is the average humidity in September?
In September, the average relative humidity is 70%.
How much does it rain in September?
In Saint-Palais-de-Négrignac, France, in September, during 10.1 rainfall days, 30mm (1.18") of precipitation is typically accumulated.
When it does not snow?
In Saint-Palais-de-Négrignac, snow does not fall in April through November.
What is the average length of the day in September?
In September, the average day length is 12h and 32min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 07:23 and sunset at 20:38. On the last day of the month, sunrise is at 07:58 and sunset at 19:42 CEST.
How long on average sun shines in September?
In Saint-Palais-de-Négrignac, the average sunshine duration in September is 8.4h.
What is the UV index reading in September in Saint-Palais-de-Négrignac?
In Saint-Palais-de-Négrignac, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe 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
Saint-Palais-de-Négrignac, France
  • Average high temperature in September: 23.5°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in September: 12.9°C

The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is February (2.9°C).

Average pressure in September
Saint-Palais-de-Négrignac, France
  • Average pressure in September: 1018.2mbar

The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is November (1014.6mbar).

Average wind speed in September
Saint-Palais-de-Négrignac, France
  • Average wind speed in September: 11.2km/h

The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

Average humidity in September
Saint-Palais-de-Négrignac, France
  • Average humidity in September: 70%

The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are August and September (70%).

Average rainfall in September
Saint-Palais-de-Négrignac, France
  • Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is July (28mm).

Average rainfall days in September
Saint-Palais-de-Négrignac, France
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is September (10.1 days).

Average snowfall in September
Saint-Palais-de-Négrignac, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (5mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Saint-Palais-de-Négrignac, France
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (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-Palais-de-Négrignac, France
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in September
Saint-Palais-de-Négrignac, France
  • Average sunshine days in September: 18.3 days

The month with the most sunshine days is September (18.3 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in September
Saint-Palais-de-Négrignac, France
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 2).

Average cloud cover in September
Saint-Palais-de-Négrignac, France
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Saint-Palais-de-Négrignac, 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).

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