September weather forecast
Belle Rose, LA

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Weather in September

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

Temperature

Belle Rose greets September with an average high-temperature of a still tropical 87.3°F (30.7°C), marking a slight deviation from the preceding month. During September, Belle Rose witnesses a consistent average low-temperature of 70.5°F (21.4°C).

Heat index

For most parts of September, the heat index is computed to be an extremely hot 104°F (40°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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 especially crucial for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The months with the highest humidity are February, September and December, with an average relative humidity of 80%.

Rainfall

In September, the rain falls for 17.9 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 165.4 rainfall days, and 26.93" (684mm) of precipitation is accumulated.

Snowfall

In Belle Rose, snow does not fall in February through December.

Daylight

The average length of the day in September in Belle Rose is 12h and 20min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

The average sunshine in September in Belle Rose is 9.7h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the UV index of 6 transforms into the following advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot does it get in Belle Rose in September?

September temperatures vary between a high-temperature of 87.3°F (30.7°C) and a low-temperature of 70.5°F (21.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in September is computed to be 104°F (40°C).

What are the most humid months in Belle Rose?

The months with the highest humidity in Belle Rose, Louisiana, are February, September and December, with an average relative humidity of 80%.

What is the average humidity in September in Belle Rose?

The average relative humidity in September is 80%.

How many days does it rain in September in Belle Rose?

In September, in Belle Rose, the rain falls for 17.9 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in Belle Rose?

February through December are months without snowfall.

How many hours of daylight does Belle Rose have in September?

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

What time are sunrise and sunset in September in Belle Rose?

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, in Belle Rose, Louisiana, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Belle Rose have in September?

The average sunshine duration in September is 9.7h.

How high is the UV index in September in Belle Rose?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to 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
Belle Rose, LA

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

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (60.1°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 (44.2°F).

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Average pressure in September
Belle Rose, LA

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

Average wind speed in September - Belle Rose, LA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in September
Belle Rose, LA

Average humidity in September - Belle Rose, LA
  • Average humidity in September: 80%

The months with the highest relative humidity are February, September and December (80%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Belle Rose, LA

Average rainfall in September - Belle Rose, LA
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (4.25").
The driest month (with the least rainfall) is November (1.18").

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Average rainfall days in September
Belle Rose, LA

Average rainfall days in September - Belle Rose, LA
  • Average rainfall days in September: 17.9 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in September
Belle Rose, LA

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

The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Belle Rose, LA

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

The month with the highest number of snowfall days is January (0.2 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
Belle Rose, LA

Average daylight in September / Average sunshine in September - Belle Rose, 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
Belle Rose, LA

Average sunshine days in September - Belle Rose, LA
  • Average sunshine days in September: 9.9 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (7.3 days).

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Average UV index in September
Belle Rose, LA

Average UV index in September - Belle Rose, 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).

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Average cloud cover in September
Belle Rose, LA

Average cloud cover in September - Belle Rose, LA
  • Average cloud cover in September: 30

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
Belle Rose, LA

Average visibility in September - Belle Rose, LA
  • Average visibility in September: 5mi

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

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Belle Rose, Louisiana, USA

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