September weather forecast
Soniat, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Soniat, Louisiana, with an average temperature ranging between max 87.3°F (30.7°C) and min 70.5°F (21.4°C).

Temperature

The onset of September notes an average high-temperature of a still hot 87.3°F (30.7°C), subtly shifted from August's 90.9°F (32.7°C). Throughout the nights in September, Soniat experiences an average low-temperature of 70.5°F (21.4°C).

Heat index

September's mean heat index is computed to be a scorching 104°F (40°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Soniat, Louisiana, in September, it is raining for 17 days, with typically 1.26" (32mm) of accumulated precipitation. In Soniat, during the entire year, the rain falls for 154.1 days and collects up to 17.91" (455mm) 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 September, 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 9.8h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

The high-temperature, in September, in Soniat, is 87.3°F (30.7°C), while the low-temperature averages to 70.5°F (21.4°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 104°F (40°C).

What is the average humidity in September?

The average relative humidity in September is 80%.

How many days does it rain in September?

In Soniat, in September, it is raining for 17 days, with typically 1.26" (32mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

On the first day of September, 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 September, the average sunshine duration is 9.8h.

How high is the UV index in September?

The average daily maximum UV index in September in Soniat, Louisiana, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average max. wind speed
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
Soniat, LA

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

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in September: 70.5°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.1°F).

Average pressure in September
Soniat, LA

Average pressure in September - Soniat, 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
Soniat, LA

Average wind speed in September - Soniat, LA
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in September
Soniat, LA

Average humidity in September - Soniat, LA
  • Average humidity in September: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Soniat, LA

Average rainfall in September - Soniat, LA
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is November (0.79").

Average rainfall days in September
Soniat, LA

Average rainfall days in September - Soniat, LA
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (7.2 days).

Average snowfall in September
Soniat, LA

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

The month with the highest snowfall is January (0.12").
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
Soniat, LA

Average snowfall days in September - Soniat, 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
Soniat, LA

Average daylight in September / Average sunshine in September - Soniat, 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 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
Soniat, LA

Average sunshine days in September - Soniat, LA
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in September
Soniat, LA

Average UV index in September - Soniat, 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
Soniat, LA

Average cloud cover in September - Soniat, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).

Average visibility in September
Soniat, LA

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

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

Soniat, Louisiana, USA

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