Louisiana (New Orleans)
September
Weather in Louisiana for September 2026
Your guide to Louisiana weather in September - trends and predictions
Until now, September 2026 in Louisiana has been nearly identical to the historical average, with a temperature of 32.9 °F (showing only a slight deviation of 0.5 °F).
The forecast for the next days in Louisiana predicts temperatures to be around 33 °F, close to the historical average.
In general, the average temperature in Louisiana at the beginning of September is 32.6 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 32.4 °F by the end of September.
The climate of Louisiana 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
Louisiana Weather September
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What’s the Weather Like in Louisiana This September?
Discover the average temperatures and weather trends across Louisiana’s cities this September.
Temperatures trend during September in Louisiana
See the weather trend as well as the moving average line
September weather in Louisiana 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 | Moderate or heavy rain shower | 32° /24° | 16.2 mm | 7 | |
| Sept. 12 | Cloudy | 32° /23° | 3.2 mm | 7 | |
| Sept. 13 | Sunny | 34° /23° | 1 mm | 8 | |
| Sept. 14 | Cloudy | 33° /24° | 0.5 mm | 8 | |
| Sept. 15 |  Overcast | 33° /24° | 1.6 mm | 8 | |
| Sept. 16 | Patchy rain possible | 32° /24° | 4.3 mm | 7 | |
| Sept. 17 |  Partly cloudy | 33° /24° | 2.6 mm | 8 | |
| Sept. 18 | Sunny | 32° /23° | 0.2 mm | 8 | |
| Sept. 19 | Cloudy | 34° /23° | 0 mm | 8 | |
| Sept. 20 | Sunny | 35° /26° | 0.4 mm | 8.8 | |
| Sept. 21 | Sunny | 34° /26° | 8.2 mm | 8.3 | |
| Sept. 22 | Sunny | 34° /26° | 0.4 mm | 8.5 | |
| Sept. 23 | Sunny | 34° /26° | 0 mm | 9 | |
| Sept. 24 | Overcast | 34° /27° | 0 mm | 7 | |
| Sept. 25 | Sunny | 35° /28° | 0 mm | 8 | |
| Sept. 26 | Overcast | 34° /26° | 0 mm | 8 | |
| Sept. 27 | Overcast | 33° /26° | 0.7 mm | 8 | |
| Sept. 28 | Overcast | 33° /24° | 25 mm | 7 | |
| Sept. 29 | Sunny | 28° /22° | 4 mm | 7 | |
| Sept. 30 | Sunny | 30° /20° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Louisiana 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 Louisiana forecast closer to your planned date for the most up-to-date weather information.
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Louisiana in September - FAQ
What are the expected maximum and minimum temperatures in Louisiana 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 Louisiana during September?
Significant rainfall exceeding 112.1 mm is expected in Louisiana during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Louisiana during September?
The average wind speed in Louisiana during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Louisiana
Explore the daily rainfall trends and prepare for Louisianas September weather 💧
Typically, Louisiana has 15 rainy days in September with a total of 112.1 mm of rainfall.
UV exposure in Louisiana during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Top locations in Louisiana
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