September weather forecast
Belle Meade, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Belle Meade, Louisiana, with an average temperature varying between 87.8°F (31°C) and 67.8°F (19.9°C).

Temperature

Belle Meade's weather, upon September's arrival, documents an average high-temperature of a still tropical 87.8°F (31°C), nearly identical to the prior month. Throughout the month of September, Belle Meade expects an average low of 67.8°F (19.9°C).

Heat index

The heat index in September is computed to be a very hot 100.4°F (38°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Belle Meade, the average relative humidity in September is 71%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 6:43 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:53 pm CDT.

Sunshine

In September, the average sunshine is 9.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The high-temperature during September is 87.8°F (31°C) and the low-temperature is 67.8°F (19.9°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 100.4°F (38°C).

What is the average humidity in September?

The average relative humidity in September is 71%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.5" (38mm) of precipitation.

How much does it rain in September?

In Belle Meade, during September, the rain falls for 11.6 days and regularly aggregates up to 1.5" (38mm) 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 22min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:43 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:53 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.6h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe 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
Belle Meade, LA

Average temperature in September - Belle Meade, LA
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (53.8°F).

  • Average low temperature in September: 67.8°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 (39.4°F).

Average pressure in September
Belle Meade, LA

Average pressure in September - Belle Meade, 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
Belle Meade, LA

Average wind speed in September - Belle Meade, LA
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.3mph).

Average humidity in September
Belle Meade, LA

Average humidity in September - Belle Meade, LA
  • Average humidity in September: 71%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Belle Meade, LA

Average rainfall in September - Belle Meade, LA
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is April (4.17").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in September
Belle Meade, LA

Average rainfall days in September - Belle Meade, LA
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Belle Meade, LA

Average snowfall in September - Belle Meade, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Belle Meade, LA

Average snowfall days in September - Belle Meade, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Belle Meade, LA

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Belle Meade, LA

Average sunshine days in September - Belle Meade, LA
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is February (13.2 days).

Average UV index in September
Belle Meade, LA

Average UV index in September - Belle Meade, 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
Belle Meade, LA

Average cloud cover in September - Belle Meade, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and October (Cloud cover 28).

Average visibility in September
Belle Meade, LA

Average visibility in September - Belle Meade, 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).

Belle Meade, Louisiana, USA

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