New Orleans (LA)
September
Weather in New Orleans, Louisiana for September 2026
Your guide to New Orleans weather in September - trends and predictions
So far, September 2026 in New Orleans is slightly warmer than the historical average by 1.1 °F.
The forecast for the next days in New Orleans predicts temperatures to be around 33 °F, close to the historical average.
In general, the average temperature in New Orleans at the beginning of September is 32.6 °F. As the month progressed, temperatures tended to remain steady, reaching an average of 32.6 °F by the end of September.
The climate of New Orleans in September is notably wet, with an average of 15 rainy days, and a total of 112.1 mm of precipitation.
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Temperatures
Rain 🌧️
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15
Dry days
15
Rainy days
0
Snow days
32°/24°
Temperatures
17 km/h
Avg max wind
68 %
Avg humidity
New Orleans Weather September
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Temperatures trend during September in New Orleans
See the weather trend as well as the moving average line
September weather in New Orleans day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 32° /25° | 22.5 mm | 6 | |
| Sept. 2 |  Moderate or heavy rain shower | 32° /24° | 11.3 mm | 8 | |
| Sept. 3 | Light rain shower | 34° /24° | 0.4 mm | 8 | |
| Sept. 4 | Patchy rain possible | 33° /25° | 25.1 mm | 6 | |
| Sept. 5 |  Cloudy | 31° /24° | 23.4 mm | 6 | |
| Sept. 6 | Patchy rain possible | 32° /24° | 5 mm | 8 | |
| Sept. 7 |  Fog | 34° /24° | 18.9 mm | 8 | |
| Sept. 8 |  Thundery outbreaks possible | 32° /23° | 0.5 mm | 8 | |
| Sept. 9 |  Sunny | 32° /23° | 1.3 mm | 8 | |
| Sept. 10 | Moderate or heavy rain shower | 31° /23° | 52.1 mm | 6 | |
| Sept. 11 | Sunny | 33° /24° | 0 mm | 9.1 | |
| Sept. 12 | Cloudy | 35° /26° | 0 mm | 9.3 | |
| Sept. 13 | Sunny | 34° /27° | 0.1 mm | 9.3 | |
| Sept. 14 | Sunny | 35° /27° | 0.2 mm | 9.1 | |
| Sept. 15 | Sunny | 35° /26° | 0.1 mm | 8 | |
| Sept. 16 | Sunny | 34° /27° | 0 mm | 8 | |
| Sept. 17 | Sunny | 35° /27° | 0 mm | 8 | |
| Sept. 18 | Sunny | 34° /27° | 1.1 mm | 8 | |
| Sept. 19 | Sunny | 32° /24° | 2.3 mm | 8 | |
| Sept. 20 | Sunny | 31° /21° | 0 mm | 8 | |
| Sept. 21 | Sunny | 30° /22° | 0 mm | 8 | |
| Sept. 22 | Sunny | 31° /24° | 0.3 mm | 8 | |
| Sept. 23 | Sunny | 32° /23° | 0 mm | 8 | |
| Sept. 24 | Sunny | 34° /24° | 0 mm | 8 | |
| Sept. 25 | Cloudy | 32° /23° | 10.7 mm | 7 | |
| Sept. 26 |  Overcast | 31° /23° | 0.2 mm | 7 | |
| Sept. 27 | Light rain shower | 32° /23° | 2.1 mm | 8 | |
| Sept. 28 | Light rain shower | 33° /23° | 0.7 mm | 8 | |
| Sept. 29 |  Partly cloudy | 34° /23° | 0.8 mm | 8 | |
| Sept. 30 | Sunny | 32° /24° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for New Orleans in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the New Orleans forecast closer to your planned date for the most up-to-date weather information.
Change Month
New Orleans in September - FAQ
What are the expected maximum and minimum temperatures in New Orleans during September?
During September, expect a variety of temperatures with highs around 32° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in New Orleans during September?
Significant rainfall exceeding 112.1 mm is expected in New Orleans during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New Orleans during September?
The average wind speed in New Orleans during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in New Orleans
Explore the daily rainfall trends and prepare for New Orleanss September weather 💧
Typically, New Orleans has 15 rainy days in September with a total of 112.1 mm of rainfall.
UV exposure in New Orleans during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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