September weather forecast
Saint Bernard, LA

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Weather in September

September, the first month of the autumn in Saint Bernard, is still a hot month, with an average temperature ranging between max 86.2°F (30.1°C) and min 76.6°F (24.8°C).

Temperature

In Saint Bernard, September's average high-temperature stands at a still hot 86.2°F (30.1°C), closely related to the preceding month. Saint Bernard, in September, witnesses an average low-temperature of 76.6°F (24.8°C).

Heat index

September's heat index is appraised at a fiery hot 96.8°F (36°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
One should consider that heat index numbers are for shaded settings and light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful 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.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In September, the average relative humidity in Saint Bernard is 72%.

Rainfall

In Saint Bernard, in September, it is raining for 16.2 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, in Saint Bernard, there are 146.1 rainfall days, and 16.85" (428mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:21 pm. On the last day of September, in Saint Bernard, Louisiana, sunrise is at 6:52 am and sunset at 6:45 pm CDT.

Sunshine

In Saint Bernard, the average sunshine in September is 10.1h.

UV index

The months with the highest UV index in Saint Bernard are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

Is it hot in Saint Bernard during September?

The high-temperature, in September, in Saint Bernard, records 86.2°F (30.1°C), while the low-temperature is 76.6°F (24.8°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is appraised at 96.8°F (36°C).

What is the average humidity in September in Saint Bernard?

In Saint Bernard, Louisiana, the average relative humidity in September is 72%.

How much does it rain in Saint Bernard in September?

In Saint Bernard, in September, during 16.2 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow in Saint Bernard?

February through November are months without snowfall in Saint Bernard, Louisiana.

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

In Saint Bernard, the average day length in September is 12h and 20min.

When are sunrise and sunset in September in Saint Bernard?

In September, on the first day of the month, sunrise is at 6:36 am and sunset at 7:21 pm. On the last day of the month, in Saint Bernard, sunrise is at 6:52 am and sunset at 6:45 pm CDT.

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

In Saint Bernard, the average sunshine duration in September is 10.1h.

What is the month with the highest UV index in Saint Bernard?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in September in Saint Bernard?

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health threat 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
Saint Bernard, LA

Average temperature in September - Saint Bernard, LA
  • Average high temperature in September: 86.2°F

The warmest months (with the highest average high temperature) are July and August (89.2°F).
The month with the lowest average high temperature is January (60.3°F).

  • Average low temperature in September: 76.6°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).

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Average pressure in September
Saint Bernard, LA

Average pressure in September - Saint Bernard, 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, August and September (29.97"Hg).

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Average wind speed in September
Saint Bernard, LA

Average wind speed in September - Saint Bernard, LA
  • Average wind speed in September: 7.4mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in September
Saint Bernard, LA

Average humidity in September - Saint Bernard, LA
  • Average humidity in September: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Saint Bernard, LA

Average rainfall in September - Saint Bernard, LA
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in September
Saint Bernard, LA

Average rainfall days in September - Saint Bernard, LA
  • Average rainfall days in September: 16.2 days

The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (5.6 days).

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Average snowfall days in September
Saint Bernard, LA

Average snowfall days in September - Saint Bernard, 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).

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

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Saint Bernard, LA

Average sunshine days in September - Saint Bernard, LA
  • Average sunshine days in September: 10.2 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (7 days).

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Average UV index in September
Saint Bernard, LA

Average UV index in September - Saint Bernard, LA
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August and September (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 Bernard, LA

Average cloud cover in September - Saint Bernard, LA
  • Average cloud cover in September: 25

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in September
Saint Bernard, LA

Average visibility in September - Saint Bernard, 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).

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Saint Bernard, Louisiana, USA

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