September weather forecast
Saint Gabriel, LA

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Weather in September

September, the first month of the autumn in Saint Gabriel, is also a hot month, with temperature in the range of an average high of 87.8°F (31°C) and an average low of 70.3°F (21.3°C).

Temperature

The average high-temperature during September is a still hot 87.8°F (31°C), almost matching the conditions of the preceding month. During the nights in September, the temperature averages to an agreeable 70.3°F (21.3°C).

Heat index

September's average heat index is appraised at a scorching 105.8°F (41°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for 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.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In Saint Gabriel, Louisiana, the average relative humidity in September is 79%.

Rainfall

In Saint Gabriel, Louisiana, in September, it is raining for 18.6 days, with typically 3.27" (83mm) of accumulated precipitation. Throughout the year, in Saint Gabriel, there are 187.5 rainfall days, and 40" (1016mm) of precipitation is accumulated.

Snowfall

In Saint Gabriel, snow does not fall in February through November.

Daylight

In September, the average length of the day 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

In Saint Gabriel, the average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

How hot is it in Saint Gabriel in September?

In September, the average high-temperature and low-temperature are 87.8°F (31°C) and 70.3°F (21.3°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 105.8°F (41°C).

What is the average humidity in September in Saint Gabriel?

The average relative humidity in September in Saint Gabriel, Louisiana, is 79%.

How many days does it rain in September in Saint Gabriel?

In Saint Gabriel, during September, the rain falls for 18.6 days and regularly aggregates up to 3.27" (83mm) of precipitation.

When it does not snow in Saint Gabriel?

February through November are months without snowfall in Saint Gabriel.

What is the average length of the day in September in Saint Gabriel?

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

When are sunrise and sunset in September in Saint Gabriel?

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

How many hours of sunshine does Saint Gabriel have in September?

The average sunshine duration in September in Saint Gabriel is 9.7h.

What is the UV index reading in September in Saint Gabriel?

In Saint Gabriel, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from 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
Saint Gabriel, LA

Average temperature in September - Saint Gabriel, LA
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in September: 70.3°F

The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (43.2°F).

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Average pressure in September
Saint Gabriel, LA

Average pressure in September - Saint Gabriel, 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
Saint Gabriel, LA

Average wind speed in September - Saint Gabriel, LA
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Saint Gabriel, LA

Average humidity in September - Saint Gabriel, LA
  • Average humidity in September: 79%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Saint Gabriel, LA

Average rainfall in September - Saint Gabriel, LA
  • Average rainfall in September: 3.27"

The wettest month (with the highest rainfall) is July (5.47").
The driest month (with the least rainfall) is November (1.93").

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Average rainfall days in September
Saint Gabriel, LA

Average rainfall days in September - Saint Gabriel, LA
  • Average rainfall days in September: 18.6 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (8.9 days).

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Average snowfall in September
Saint Gabriel, LA

Average snowfall in September - Saint Gabriel, LA
  • Average snowfall in September: 0"

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

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Average snowfall days in September
Saint Gabriel, LA

Average snowfall days in September - Saint Gabriel, 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 and November (0 days).

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Average daylight in September /
Average sunshine in September
Saint Gabriel, LA

Average daylight in September / Average sunshine in September - Saint Gabriel, 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
Saint Gabriel, LA

Average sunshine days in September - Saint Gabriel, LA
  • Average sunshine days in September: 9.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (5.9 days).

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Average UV index in September
Saint Gabriel, LA

Average UV index in September - Saint Gabriel, LA
  • Average UV index in September: 6

The months with the highest UV index are May, 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
Saint Gabriel, LA

Average cloud cover in September - Saint Gabriel, LA
  • Average cloud cover in September: 31

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
Saint Gabriel, LA

Average visibility in September - Saint Gabriel, LA
  • Average visibility in September: 5mi

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

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Saint Gabriel, Louisiana, USA

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