September weather forecast
Bayou Geneve, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Bayou Geneve, Louisiana, with an average temperature varying between 86.4°F (30.2°C) and 73°F (22.8°C).

Temperature

The onset of September brings with it an average high-temperature of a still tropical 86.4°F (30.2°C), showing a negligible variation from the month before. Bayou Geneve observes an average nighttime low-temperature of 73°F (22.8°C) during the month of September.

Heat index

The heat index value for September is appraised at a very hot 100.4°F (38°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Bayou Geneve, the average relative humidity in September is 78%.

Rainfall

In Bayou Geneve, in September, during 14 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 128.6 rainfall days, and 13.27" (337mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Bayou Geneve.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

In September, the average sunshine is 10.5h.

UV index

In Bayou Geneve, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 6 during September translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

Is it hot in Bayou Geneve during September?

The average high-temperature and low-temperature during September are 86.4°F (30.2°C) and 73°F (22.8°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in September is appraised at 100.4°F (38°C).

What is the average humidity in September in Bayou Geneve?

The average relative humidity in September in Bayou Geneve, Louisiana, is 78%.

How much does it rain in Bayou Geneve in September?

In Bayou Geneve, Louisiana, in September, it is raining for 14 days, with typically 1.1" (28mm) of accumulated precipitation.

When it does not snow in Bayou Geneve?

February through December are months without snowfall in Bayou Geneve.

How many hours of daylight does Bayou Geneve have in September?

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

When is the sunrise / sunset in September in Bayou Geneve?

On the first day of September in Bayou Geneve, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How long on average sun shines in September in Bayou Geneve?

The average sunshine duration in September is 10.5h.

What is the UV index intensity in September in Bayou Geneve?

In Bayou Geneve, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bayou Geneve, LA

Average temperature in September - Bayou Geneve, LA
  • Average high temperature in September: 86.4°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (60.1°F).

  • Average low temperature in September: 73°F

The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).

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Average pressure in September
Bayou Geneve, LA

Average pressure in September - Bayou Geneve, 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).

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Average wind speed in September
Bayou Geneve, LA

Average wind speed in September - Bayou Geneve, LA
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in September
Bayou Geneve, LA

Average humidity in September - Bayou Geneve, LA
  • Average humidity in September: 78%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Bayou Geneve, LA

Average rainfall in September - Bayou Geneve, LA
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is March (0.43").

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Average rainfall days in September
Bayou Geneve, LA

Average rainfall days in September - Bayou Geneve, LA
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is August (20 days).
The month with the least rainy days is November (6 days).

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Average snowfall days in September
Bayou Geneve, LA

Average snowfall days in September - Bayou Geneve, 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).

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Average daylight in September /
Average sunshine in September
Bayou Geneve, LA

Average daylight in September / Average sunshine in September - Bayou Geneve, 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 3min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in September
Bayou Geneve, LA

Average sunshine days in September - Bayou Geneve, LA
  • Average sunshine days in September: 12.2 days

The month with the most sunshine days is November (23 days).
The month with the least sunshine days is August (6.9 days).

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Average UV index in September
Bayou Geneve, LA

Average UV index in September - Bayou Geneve, 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
Bayou Geneve, LA

Average cloud cover in September - Bayou Geneve, LA
  • Average cloud cover in September: 25

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 23).

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Average visibility in September
Bayou Geneve, LA

Average visibility in September - Bayou Geneve, 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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Bayou Geneve, Louisiana, USA

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