September weather forecast
Natchitoches, LA

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Night neon light rays fall on the ancient building that holds the Minor Basilica in Natchitoches, Louisiana
Night neon light rays fall on the ancient building that holds the Minor Basilica in Natchitoches, Louisiana

Weather in September

September in Natchitoches, Louisiana, marks the beginning of fall, coupled with a significant drop in highest temperature to 88.9°F (31.6°C), succinctly highlighting the season’s onset. The reduction in temperature is complemented by shorter daylight hours, driving the city into the embrace of cozy autumn. Rainfall surpasses the levels witnessed during the heat of summer, thus retaining humidity. The wind's moderate pace contributes to the overall calm demeanour of the season. As October approaches, the fall spirit deepens, resonating in further dips in temperature and daylight hours.

Temperature

September signifies a gentle decline in Natchitoches's average high-temperature, easing from 94.3°F (34.6°C) in August to a still hot 88.9°F (31.6°C). The average temperature during September nights dips to an agreeable 68°F (20°C).

Heat index

For September, the heat index is estimated at an extremely hot 104°F (40°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital 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.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In September, the average relative humidity is 73%.

Rainfall

In Natchitoches, in September, it is raining for 13.1 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 142.7 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:58 pm CDT.

Sunshine

In September, the average sunshine is 9.4h.

UV index

In Natchitoches, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

How hot is September?

In Natchitoches, 88.9°F (31.6°C) is the average high-temperature and 68°F (20°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 104°F (40°C).

What is the average humidity in September?

The average relative humidity in September is 73%.

How much does it rain in September?

In September, the rain falls for 13.1 days. Throughout September, 2.05" (52mm) of precipitation is accumulated.

When it does not snow?

April through November are months without snowfall.

How many hours of daylight does Natchitoches have in September?

The average day length in September is 12h and 21min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:48 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:58 pm CDT.

How long on average sun shines in September?

In Natchitoches, the average sunshine duration in September is 9.4h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
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
Natchitoches, LA

Average temperature in September - Natchitoches, 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
Natchitoches, LA

Average pressure in September - Natchitoches, 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
Natchitoches, LA

Average wind speed in September - Natchitoches, 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
Natchitoches, LA

Average humidity in September - Natchitoches, 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
Natchitoches, LA

Average rainfall in September - Natchitoches, 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
Natchitoches, LA

Average rainfall days in September - Natchitoches, 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
Natchitoches, LA

Average snowfall in September - Natchitoches, 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
Natchitoches, LA

Average snowfall days in September - Natchitoches, 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
Natchitoches, LA

Average daylight in September / Average sunshine in September - Natchitoches, 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
Natchitoches, LA

Average sunshine days in September - Natchitoches, 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
Natchitoches, LA

Average UV index in September - Natchitoches, 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
Natchitoches, LA

Average cloud cover in September - Natchitoches, 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
Natchitoches, LA

Average visibility in September - Natchitoches, 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).

Natchitoches, Louisiana, USA

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