September weather forecast
Shamrock Gardens, LA

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Weather in September

The first month of the autumn, September, is still a hot month in Shamrock Gardens, Louisiana, with an average temperature ranging between max 88.3°F (31.3°C) and min 70°F (21.1°C).

Temperature

Shamrock Gardens starts September with an average high-temperature of a still hot 88.3°F (31.3°C), a minor shift from August's 91.9°F (33.3°C). During September, Shamrock Gardens experiences an average low-temperature of 70°F (21.1°C) at night.

Heat index

The heat index for September is evaluated at an extremely hot 105.8°F (41°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Shamrock Gardens, the average relative humidity in September is 78%.

Rainfall

March and September are months with the least rain when the rain falls for 9.7 days and typically aggregates up to 0.28" (7mm) of rain.

Snowfall

February through November are months without snowfall in Shamrock Gardens.

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 9.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 suggests this advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

In Shamrock Gardens, 88.3°F (31.3°C) is the average high-temperature and 70°F (21.1°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is evaluated at 105.8°F (41°C).

What is the average humidity in September?

The average relative humidity in September in Shamrock Gardens is 78%.

What is the driest month?

March and September are months with the least rain when the rain falls for 9.7 days and typically aggregates up to 0.28" (7mm) of rain.

How many days does it rain in September in Shamrock Gardens?

In Shamrock Gardens, during September, the rain falls for 9.7 days and regularly aggregates up to 0.28" (7mm) of precipitation.

When it does not snow?

In Shamrock Gardens, snow does not fall in February through November.

How many hours of daylight does Shamrock Gardens have in September?

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

What time are sunrise and sunset in September?

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, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Shamrock Gardens have in September?

In Shamrock Gardens, the average sunshine duration in September is 9.5h.

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 unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Shamrock Gardens, LA

Average temperature in September - Shamrock Gardens, LA
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (58.8°F).

  • Average low temperature in September: 70°F

The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in September
Shamrock Gardens, LA

Average pressure in September - Shamrock Gardens, LA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Shamrock Gardens, LA

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

The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).

Average humidity in September
Shamrock Gardens, LA

Average humidity in September - Shamrock Gardens, LA
  • Average humidity in September: 78%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Shamrock Gardens, LA

Average rainfall in September - Shamrock Gardens, LA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is July (1.1").
The driest months (with the least rainfall) are March and September (0.28").

Average rainfall days in September
Shamrock Gardens, LA

Average rainfall days in September - Shamrock Gardens, LA
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is November (4.6 days).

Average snowfall days in September
Shamrock Gardens, LA

Average snowfall days in September - Shamrock Gardens, LA
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Shamrock Gardens, LA

Average daylight in September / Average sunshine in September - Shamrock Gardens, 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 3min

The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Shamrock Gardens, LA

Average sunshine days in September - Shamrock Gardens, LA
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (24.1 days).
The month with the least sunshine days is July (12.5 days).

Average UV index in September
Shamrock Gardens, LA

Average UV index in September - Shamrock Gardens, LA
  • Average UV index in September: 6

The months with the highest UV index are May, 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
Shamrock Gardens, LA

Average cloud cover in September - Shamrock Gardens, LA
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Shamrock Gardens, LA

Average visibility in September - Shamrock Gardens, LA
  • Average visibility in September: 5mi

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

Shamrock Gardens, Louisiana, USA

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