Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's presence records an average high-temperature of a still hot 86.2°F (30.1°C), closely mirroring August's climate. Throughout the nights in September, an average low-temperature of 76.6°F (24.8°C) is noted.Heat index
Throughout September, the heat index is evaluated at a fiery hot 96.8°F (36°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In September, the average relative humidity 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, 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
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:36 am and sunset at 7:21 pm. On the last day of the month, 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
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the UV index of 7 transforms into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September in Saint Bernard?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Saint Bernard have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Saint Bernard have in September?
When is the highest UV index?
What is the UV index intensity in September?
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).
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).
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).
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%).
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").
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).
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).
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).
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).
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).
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).
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).
Saint Bernard, Louisiana, USA
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