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 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
With the onset of September, Natchez experiences a modest temperature adjustment, with the average high-temperature gently receding from a tropical 94.3°F (34.6°C) in August to a still hot 88.9°F (31.6°C). Natchez in September experiences a low-temperature average of 68°F (20°C).Heat index
September's average heat index is computed to be a scorching 104°F (40°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant 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 innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In September, the average relative humidity in Natchez, Louisiana, is 73%.Rainfall
In September, in Natchez, the rain falls for 13.1 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. In Natchez, during the entire year, the rain falls for 142.7 days and collects up to 23.9" (607mm) of precipitation.Snowfall
In Natchez, snow does not fall in April through November.Daylight
In Natchez, Louisiana, the average length of the day in September is 12h and 21min.On the first day of September in Natchez, Louisiana, sunrise is at 6:48 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:57 pm CDT.
Sunshine
In September, the average sunshine in Natchez is 9.4h.UV index
In Natchez, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
How hot is it in Natchez in September?
What is the average humidity in September in Natchez?
How much does it rain in Natchez in September?
When it does not snow in Natchez?
How many hours of daylight does Natchez have in September?
What time are sunrise and sunset in September in Natchez?
How many hours of sunshine does Natchez have in September?
How high is the UV index in September in Natchez?
Average temperature in September
Natchez, LA
- Average high temperature in September: 88.9°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in September: 68°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).
Average pressure in September
Natchez, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Natchez, LA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Natchez, LA
- Average humidity in September: 73%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in September
Natchez, LA
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is November (1.3").
Average rainfall days in September
Natchez, LA
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Natchez, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Natchez, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Natchez, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Natchez, LA
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (12.1 days).
Average UV index in September
Natchez, LA
- Average UV index in September: 6
The months with the highest UV index are 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
Natchez, LA
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Natchez, LA
- Average visibility in September: 5mi
The months with the highest visibility are June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, September and December (5mi).
Natchez, Louisiana, USA
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