September weather forecast
Bayou Fountain, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Bayou Fountain, Louisiana, with an average temperature varying between 70.3°F (21.3°C) and 87.8°F (31°C).

Temperature

The shift into September finds Bayou Fountain at an average high-temperature of a still hot 87.8°F (31°C), closely comparable to August's conditions. In the month of September, Bayou Fountain records a consistent average low-temperature of 70.3°F (21.3°C).

Heat index

In September, the average heat index is estimated at an extremely hot 105.8°F (41°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. 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. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

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

Rainfall

In Bayou Fountain, during September, the rain falls for 18.6 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Bayou Fountain, Louisiana, during the entire year, the rain falls for 187.5 days and collects up to 40" (1016mm) of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September in Bayou Fountain, 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.

Sunshine

The average sunshine in September is 9.7h.

UV index

In Bayou Fountain, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

How hot is it in Bayou Fountain in September?

An average high-temperature, in September, in Bayou Fountain, is 87.8°F (31°C) and the average low-temperature is 70.3°F (21.3°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 105.8°F (41°C).

What is the average humidity in September in Bayou Fountain?

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

How many days does it rain in September in Bayou Fountain?

In Bayou Fountain, Louisiana, in September, during 18.6 rainfall days, 3.27" (83mm) of precipitation is typically accumulated.

When it does not snow in Bayou Fountain?

February through November are months without snowfall in Bayou Fountain.

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

In Bayou Fountain, the average day length in September is 12h and 20min.

What time are sunrise and sunset in September in Bayou Fountain?

In September, on the first day of the month, 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 Fountain?

The average sunshine duration in September in Bayou Fountain is 9.7h.

What is the UV index reading in September in Bayou Fountain?

In Bayou Fountain, Louisiana, 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bayou Fountain, LA

Average temperature in September - Bayou Fountain, LA
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in September: 70.3°F

The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (43.2°F).

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Average pressure in September
Bayou Fountain, LA

Average pressure in September - Bayou Fountain, LA
  • Average pressure in September: 29.97"Hg

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

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Average wind speed in September
Bayou Fountain, LA

Average wind speed in September - Bayou Fountain, LA
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Bayou Fountain, LA

Average humidity in September - Bayou Fountain, 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 (73%).

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Average rainfall in September
Bayou Fountain, LA

Average rainfall in September - Bayou Fountain, LA
  • Average rainfall in September: 3.27"

The wettest month (with the highest rainfall) is July (5.47").
The driest month (with the least rainfall) is November (1.93").

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Average rainfall days in September
Bayou Fountain, LA

Average rainfall days in September - Bayou Fountain, LA
  • Average rainfall days in September: 18.6 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (8.9 days).

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Average snowfall in September
Bayou Fountain, LA

Average snowfall in September - Bayou Fountain, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.2").
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
Bayou Fountain, LA

Average snowfall days in September - Bayou Fountain, 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
Bayou Fountain, LA

Average daylight in September / Average sunshine in September - Bayou Fountain, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Bayou Fountain, LA

Average sunshine days in September - Bayou Fountain, LA
  • Average sunshine days in September: 9.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (5.9 days).

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Average UV index in September
Bayou Fountain, LA

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

Average cloud cover in September - Bayou Fountain, LA
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).

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Average visibility in September
Bayou Fountain, LA

Average visibility in September - Bayou Fountain, LA
  • Average visibility in September: 5mi

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

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Bayou Fountain, Louisiana, USA

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