New Orleans in september: average Weather, Temperature and Climate
Weather in New Orleans in september 2025
The weather in New Orleans in the month of september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 7
Weather at 6am
77°F
Clear/Sunny
52% of time
27%
15%
4%
Weather at 12pm
88°F
Clear/Sunny
48% of time
29%
17%
5%
Weather at 6pm
85°F
Clear/Sunny
53% of time
22%
19%
5%
Weather at 3am
79°F
50%
21%
20%
7%
Evolution of daily average temperature and precipitation in New Orleans in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in New Orleans in september.
The climate of New Orleans in september is good
The climate in september in New Orleans is wet (with 5.1in of rainfall over 10 days). The weather is better from the previous month since in august it receives an average of 7.7in of rainfall over 13 days.
The climate quite enjoyable in this city this month. Temperatures are up to 88°F. On average, the recorded minimum temperature is 77°F. Thus, the mean temperature average on this month of september in New Orleans is 83°F. Note that these seasonal averages are in contrast with those observed in New Orleans in the month of september with a maximum record of 97°F in 2019 and a minimum record of 61°F in 2011. You can plan to have about 22 days with temperatures above 86°F, or 73 of the month.
On this month of september, day length in New Orleans is generally 12:20. Sunrise is at 05:45 and sunset is at 18:05.
With a good weather, this month is a good time to go in that area in United States.
Seasonal average climate and temperature of New Orleans in september
Check below seasonal norms These datas are set from the weather statements of the past years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 83°F | ||||
| Highest temperature | 88°F | ||||
| Lowest temperature | 77°F | ||||
| Highest record temperature | 97°F (2019) | ||||
| Lowest record temperature | 61°F (2011) | ||||
| Number of days at +86°F | 22 day(s) (73%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 83°F | ||||
| Lowest sea temperature | 79°F | ||||
| Highest sea temperature | 87°F | ||||
| Wind | |||||
| Wind speed | 16km/h | ||||
| Wind temperature | 77°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 5.1in | ||||
| Number of days with rainfall | 10 day(s) (32%) | ||||
| Record daily rainfall | 2.8in (2020) | ||||
| Other climate data | |||||
| Humidity | 83% | ||||
| Visibility | 9.57km | ||||
| Cloud cover | 27% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:45 | ||||
| Time of sunset | 18:05 | ||||
| Length of day | 12:20 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in New Orleans in september 2024:
76°F to 83°F
76°F to 88°F
79°F to 90°F
81°F to 88°F
77°F to 79°F
76°F to 77°F
70°F to 74°F
72°F to 81°F
72°F to 83°F
76°F to 81°F
76°F to 79°F
72°F to 79°F
70°F to 85°F
72°F to 88°F
76°F to 85°F
76°F to 85°F
76°F to 86°F
76°F to 88°F
77°F to 90°F
77°F to 90°F
77°F to 92°F
77°F to 90°F
76°F to 90°F
74°F to 88°F
74°F to 94°F
74°F to 85°F
70°F to 88°F
72°F to 94°F
72°F to 94°F
76°F to 85°F
Map: other cities in Louisiana in september
Cities near New Orleans:
| Slidell in september | good weather |
| Port Sulphur in september | good weather |
| Houma in september | good weather |
| Grand Isle in september | good weather |
| Morgan City in september | good weather |
| Baton Rouge in september | good weather |
| New Iberia in september | good weather |
| Marsh Island in september | good weather |
| Opelousas in september | good weather |
| Marksville in september | good weather |
| Pecan Island in september | good weather |
| Oakdale in september | good weather |
Click over cities on the map for information about the weather in september.
New Orleans
perfect weather
good
tolerable
bad
very bad
Weather data for New Orleans in september:
Weather data for New Orleans for september are derived from an average of the weather forecast since 2009 in New Orleans. There is a margin of error and these forecasts are to be considered as general information only. The weather in New Orleans can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to New Orleans.