September weather forecast
French Settlement, LA

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Weather in September

The first month of the autumn, September, is also a hot month in French Settlement, Louisiana, with an average temperature varying between 70.5°F (21.4°C) and 87.4°F (30.8°C).

Temperature

September's arrival registers an average high-temperature of a still hot 87.4°F (30.8°C), closely aligning with the temperature of the previous month. French Settlement experiences an average temperature drop to an agreeable 70.5°F (21.4°C) during September nights.

Heat index

For most parts of September, the heat index is evaluated at a scorching 104°F (40°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In French Settlement, in September, during 14.9 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In French Settlement, during the entire year, the rain falls for 151.5 days and collects up to 18.62" (473mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

In September, the average length of the day in French Settlement is 12h and 20min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:49 pm CDT.

Sunshine

The average sunshine in September in French Settlement is 9.9h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Deflect overexposure. Sun protection is a necessity. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

How hot is it in French Settlement in September?

September temperatures in French Settlement vary between a high-temperature of 87.4°F (30.8°C) and a low-temperature of 70.5°F (21.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 104°F (40°C).

What is the average humidity in September in French Settlement?

In September, the average relative humidity is 79%.

How much does it rain in French Settlement in September?

In September, in French Settlement, Louisiana, the rain falls for 14.9 days. Throughout September, 1.18" (30mm) of precipitation is accumulated.

When it does not snow in French Settlement?

February through December are months without snowfall.

What is the average length of the day in September in French Settlement?

The average day length in September in French Settlement, Louisiana, is 12h and 20min.

When is the sunrise / sunset in September in French Settlement?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:25 pm. On the last day of the month, in French Settlement, Louisiana, sunrise is at 6:56 am and sunset at 6:49 pm CDT.

How many hours of sunshine does French Settlement have in September?

The average sunshine duration in September in French Settlement is 9.9h.

How high is the UV index in September in French Settlement?

In French Settlement, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average humidity
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
French Settlement, LA

Average temperature in September - French Settlement, LA
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in September: 70.5°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).

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Average pressure in September
French Settlement, LA

Average pressure in September - French Settlement, LA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in September
French Settlement, LA

Average wind speed in September - French Settlement, LA
  • Average wind speed in September: 4.9mph

The windiest months (with the highest average wind speed) are February and April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in September
French Settlement, LA

Average humidity in September - French Settlement, LA
  • Average humidity in September: 79%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
French Settlement, LA

Average rainfall in September - French Settlement, LA
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is July (3.03").
The driest months (with the least rainfall) are March and November (0.98").

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Average rainfall days in September
French Settlement, LA

Average rainfall days in September - French Settlement, LA
  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (7.9 days).

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Average snowfall in September
French Settlement, LA

Average snowfall in September - French Settlement, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
French Settlement, LA

Average snowfall days in September - French Settlement, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
French Settlement, LA

Average daylight in September / Average sunshine in September - French Settlement, LA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in September
French Settlement, LA

Average sunshine days in September - French Settlement, LA
  • Average sunshine days in September: 12.9 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (9.3 days).

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Average UV index in September
French Settlement, LA

Average UV index in September - French Settlement, LA
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
French Settlement, LA

Average cloud cover in September - French Settlement, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).

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Average visibility in September
French Settlement, LA

Average visibility in September - French Settlement, LA
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, June, July, August, October, November and December (6mi).
The months with the lowest visibility are March, April, May and September (5mi).

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French Settlement, Louisiana, USA

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