September weather forecast
Stones Landing, LA

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Weather in September

The first month of the autumn, September, is also a hot month in Stones Landing, Louisiana, with an average temperature varying between 68.2°F (20.1°C) and 87.1°F (30.6°C).

Temperature

September commences with an average high-temperature of a still tropical 87.1°F (30.6°C), showing little deviation from August's 91°F (32.8°C). An average low-temperature of 68.2°F (20.1°C) is anticipated throughout the nights during September.

Heat index

September's average heat index is evaluated at a sweltering 98.6°F (37°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in September is 73%.

Rainfall

September and November are months with the least rain when the rain falls for 14.1 days and typically aggregates up to 2.28" (58mm) of rain.

Snowfall

In Stones Landing, snow does not fall in April through November.

Daylight

In Stones Landing, the average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:30 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:51 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 of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 in September translates into these instructions:
Guard against overexposure. Protection from sun-induced harm is essential. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

In September, in Stones Landing, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 68.2°F (20.1°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is evaluated at 98.6°F (37°C).

What is the average humidity in September?

The average relative humidity in September is 73%.

What is the driest month?

September and November are months with the least rain when the rain falls for 14.1 days and typically aggregates up to 2.28" (58mm) of rain.

How many days does it rain in September?

In Stones Landing, during September, the rain falls for 14.1 days and regularly aggregates up to 2.28" (58mm) of precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in September?

The average day length in September is 12h and 21min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:42 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:51 pm CDT.

How long on average sun shines in September in Stones Landing?

In September, the average sunshine duration is 9.8h.

What is the UV index intensity in September in Stones Landing?

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Stones Landing, LA

Average temperature in September - Stones Landing, LA
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).

Average pressure in September
Stones Landing, LA

Average pressure in September - Stones Landing, LA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Stones Landing, LA

Average wind speed in September - Stones Landing, LA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).

Average humidity in September
Stones Landing, LA

Average humidity in September - Stones Landing, LA
  • Average humidity in September: 73%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Stones Landing, LA

Average rainfall in September - Stones Landing, LA
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is April (3.54").
The driest months (with the least rainfall) are September and November (2.28").

Average rainfall days in September
Stones Landing, LA

Average rainfall days in September - Stones Landing, LA
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in September
Stones Landing, LA

Average snowfall in September - Stones Landing, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Stones Landing, LA

Average snowfall days in September - Stones Landing, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Stones Landing, LA

Average daylight in September / Average sunshine in September - Stones Landing, LA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Stones Landing, LA

Average sunshine days in September - Stones Landing, LA
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is August (11.3 days).

Average UV index in September
Stones Landing, LA

Average UV index in September - Stones Landing, LA
  • Average UV index in September: 6

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

Average cloud cover in September
Stones Landing, LA

Average cloud cover in September - Stones Landing, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and October (Cloud cover 27).

Average visibility in September
Stones Landing, LA

Average visibility in September - Stones Landing, 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).

Stones Landing, Louisiana, USA

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