September weather forecast
Marguerite, LA

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Weather in September

The first month of the autumn, September, is also a hot month in Marguerite, Louisiana, with an average temperature varying between 72.1°F (22.3°C) and 86.2°F (30.1°C).

Temperature

September's climate shows a minor adjustment in average high-temperatures to a still tropical 86.2°F (30.1°C) from August's 89.6°F (32°C). In Marguerite, an average temperature of 72.1°F (22.3°C) is noted during September nights.

Heat index

In September, the average heat index is computed to be a fiery hot 100.4°F (38°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Marguerite, the average relative humidity in September is 79%.

Rainfall

In Marguerite, during September, the rain falls for 14 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 131.2 rainfall days, and 11.38" (289mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Marguerite.

Daylight

In Marguerite, the average length of the day in September is 12h and 20min.
On the first day of September in Marguerite, sunrise is at 6:44 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:53 pm CDT.

Sunshine

In Marguerite, the average sunshine in September is 10.3h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 in September translates into these instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

During September, Marguerite experiences an average high-temperature of 86.2°F (30.1°C) and a low-temperature of 72.1°F (22.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 100.4°F (38°C).

What is the average humidity in September in Marguerite?

The average relative humidity in September is 79%.

How much does it rain in September?

In Marguerite, Louisiana, in September, during 14 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow?

In Marguerite, snow does not fall in February through December.

How many hours of daylight does Marguerite have in September?

The average day length in September is 12h and 20min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:44 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:53 pm CDT.

How many hours of sunshine does Marguerite have in September?

In Marguerite, the average sunshine duration in September is 10.3h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Marguerite, LA

Average temperature in September - Marguerite, LA
  • Average high temperature in September: 86.2°F

The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in September: 72.1°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (46°F).

Average pressure in September
Marguerite, LA

Average pressure in September - Marguerite, LA
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.96"Hg).

Average wind speed in September
Marguerite, LA

Average wind speed in September - Marguerite, LA
  • Average wind speed in September: 5.7mph

The windiest months (with the highest average wind speed) are February and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in September
Marguerite, LA

Average humidity in September - Marguerite, LA
  • Average humidity in September: 79%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Marguerite, LA

Average rainfall in September - Marguerite, LA
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is March (0.35").

Average rainfall days in September
Marguerite, LA

Average rainfall days in September - Marguerite, LA
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is August (19.8 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in September
Marguerite, LA

Average snowfall in September - Marguerite, 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").

Average snowfall days in September
Marguerite, LA

Average snowfall days in September - Marguerite, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Marguerite, LA

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in September
Marguerite, LA

Average sunshine days in September - Marguerite, LA
  • Average sunshine days in September: 11 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is August (6.8 days).

Average UV index in September
Marguerite, LA

Average UV index in September - Marguerite, 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).

Average cloud cover in September
Marguerite, LA

Average cloud cover in September - Marguerite, LA
  • Average cloud cover in September: 26

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in September
Marguerite, LA

Average visibility in September - Marguerite, LA
  • Average visibility in September: 6mi

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

Marguerite, Louisiana, USA

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