September weather forecast
Grand Chenier, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Grand Chenier, Louisiana, with an average temperature varying between 87.6°F (30.9°C) and 72.3°F (22.4°C).

Temperature

Grand Chenier, Louisiana, in September witnesses an average high-temperature of a still hot 87.6°F (30.9°C), indicating a slight variation from August's 91.2°F (32.9°C). An average low-temperature of 72.3°F (22.4°C) is observed during the September nights.

Heat index

The average heat index in September is calculated to be a torrid 102.2°F (39°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In Grand Chenier, in September, it is raining for 15.7 days, with typically 3.11" (79mm) of accumulated precipitation. In Grand Chenier, during the entire year, the rain falls for 168 days and collects up to 34.96" (888mm) of precipitation.

Snowfall

February through November are months without snowfall in Grand Chenier.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:49 am and sunset at 7:33 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:58 pm CDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September in Grand Chenier, Louisiana, is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, an average UV index of 6 transforms into the following instructions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

Is it hot in Grand Chenier during September?

The high-temperature, in September, in Grand Chenier, is 87.6°F (30.9°C), while the low-temperature averages to 72.3°F (22.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is calculated to be 102.2°F (39°C).

What is the average humidity in September in Grand Chenier?

In Grand Chenier, Louisiana, the average relative humidity in September is 76%.

How many days does it rain in September in Grand Chenier?

In Grand Chenier, during September, the rain falls for 15.7 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Grand Chenier?

February through November are months without snowfall in Grand Chenier, Louisiana.

How many hours of daylight does Grand Chenier have in September?

In September, the average day length in Grand Chenier is 12h and 20min.

When are sunrise and sunset in September in Grand Chenier?

In September, on the first day of the month, sunrise is at 6:49 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:58 pm CDT.

How long on average sun shines in September in Grand Chenier?

The average sunshine duration in September is 9.6h.

What is the UV index intensity in September in Grand Chenier?

In Grand Chenier, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
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
Grand Chenier, LA

Average temperature in September - Grand Chenier, LA
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in September: 72.3°F

The month with the highest average low temperature is July (77.2°F).
The coldest month (with the lowest average low temperature) is January (46°F).

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Average pressure in September
Grand Chenier, LA

Average pressure in September - Grand Chenier, LA
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).

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Average wind speed in September
Grand Chenier, LA

Average wind speed in September - Grand Chenier, LA
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in September
Grand Chenier, LA

Average humidity in September - Grand Chenier, LA
  • Average humidity in September: 76%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Grand Chenier, LA

Average rainfall in September - Grand Chenier, LA
  • Average rainfall in September: 3.11"

The wettest month (with the highest rainfall) is August (5").
The driest month (with the least rainfall) is April (2.09").

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Average rainfall days in September
Grand Chenier, LA

Average rainfall days in September - Grand Chenier, LA
  • Average rainfall days in September: 15.7 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in September
Grand Chenier, LA

Average snowfall in September - Grand Chenier, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Grand Chenier, LA

Average snowfall days in September - Grand Chenier, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Grand Chenier, LA

Average daylight in September / Average sunshine in September - Grand Chenier, 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: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Grand Chenier, LA

Average sunshine days in September - Grand Chenier, LA
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is August (10.3 days).

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Average UV index in September
Grand Chenier, LA

Average UV index in September - Grand Chenier, 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
Grand Chenier, LA

Average cloud cover in September - Grand Chenier, LA
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).

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Average visibility in September
Grand Chenier, LA

Average visibility in September - Grand Chenier, 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).

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Grand Chenier, Louisiana, USA

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