September weather forecast
Reveille, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Reveille, Louisiana, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 70.3°F (21.3°C).

Temperature

The introduction of September notes a subtle temperature variation to a still tropical 87.3°F (30.7°C) from August's 91.2°F (32.9°C). In September, Reveille's temperature tends to fall to an average low of 70.3°F (21.3°C) during the night.

Heat index

The heat index in September is evaluated at an extremely hot 104°F (40°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

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

Rainfall

In Reveille, during September, the rain falls for 16 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Reveille, during the entire year, the rain falls for 148.6 days and collects up to 15.51" (394mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:50 pm CDT.

Sunshine

The average sunshine in September in Reveille is 9.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

In Reveille, in September, the average high-temperature is 87.3°F (30.7°C), and the average low-temperature is 70.3°F (21.3°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 104°F (40°C).

What is the average humidity in September?

In September, the average relative humidity is 79%.

How much does it rain in September?

In September, in Reveille, the rain falls for 16 days. Throughout September, 1.18" (30mm) of precipitation is accumulated.

When it does not snow?

February through December are months without snowfall.

How many hours of daylight does Reveille have in September?

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

When is the sunrise / sunset in September in Reveille?

In September, on the first day of the month, sunrise is at 6:41 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:50 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.7h.

What is the UV index reading in September?

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

Average temperature in September - Reveille, LA
  • Average high temperature in September: 87.3°F

The warmest months (with the highest average high temperature) are July and August (91.2°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 (74.5°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).

Average pressure in September
Reveille, LA

Average pressure in September - Reveille, 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).

Average wind speed in September
Reveille, LA

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

The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September
Reveille, LA

Average humidity in September - Reveille, 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%).

Average rainfall in September
Reveille, LA

Average rainfall in September - Reveille, LA
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is March (0.67").

Average rainfall days in September
Reveille, LA

Average rainfall days in September - Reveille, LA
  • Average rainfall days in September: 16 days

The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (7.1 days).

Average snowfall in September
Reveille, LA

Average snowfall in September - Reveille, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.08").
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
Reveille, LA

Average snowfall days in September - Reveille, 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, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Reveille, 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 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
Reveille, LA

Average sunshine days in September - Reveille, LA
  • Average sunshine days in September: 11.3 days

The month with the most sunshine days is November (21.4 days).
The months with the least sunshine days are July and August (7.3 days).

Average UV index in September
Reveille, LA

Average UV index in September - Reveille, LA
  • Average UV index in September: 6

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

Average cloud cover in September
Reveille, LA

Average cloud cover in September - Reveille, LA
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in September
Reveille, LA

Average visibility in September - Reveille, LA
  • Average visibility in September: 5mi

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

Reveille, Louisiana, USA

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