Orleans Parish Weather in September
Average highs run from 90°F on September 1 to 84°F on September 30, and lows from 78°F to 72°F. Normal precipitation for the month is 4.64 in over about 9 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 87°F
- Average low
- 76°F
- Precipitation
- 4.64 in
- Record high
- 101°FSep 4, 2000
- Record low
- 61°FSep 22, 1995
- Chance of a freeze
- 0%
- Days of 90°F or more
- 13.0
- Daylight
- 12 h 45 min to 11 h 53 min
- Cloud cover
- 47%
- Humidity
- 78%
- Dew point
- 72°F
- Wind
- 8.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Sep 1 | 90°F | 78°F | 98°F 2000 | 72°F 1998 | 35% | 0% |
| Sep 2 | 90°F | 78°F | 99°F 2000 | 75°F 1999 | 35% | 0% |
| Sep 3 | 89°F | 78°F | 95°F 2024 | 72°F 1992 | 35% | 0% |
| Sep 4 | 89°F | 78°F | 101°F 2000 | 75°F 1994 | 35% | 0% |
| Sep 5 | 89°F | 78°F | 97°F 2000 | 69°F 2011 | 34% | 0% |
| Sep 6 | 89°F | 77°F | 96°F 1999 | 67°F 2011 | 34% | 0% |
| Sep 7 | 89°F | 77°F | 99°F 2023 | 67°F 2011 | 34% | 0% |
| Sep 8 | 89°F | 77°F | 94°F 2012 | 69°F 2011 | 33% | 0% |
| Sep 9 | 89°F | 77°F | 94°F 1994 | 71°F 2011 | 33% | 0% |
| Sep 10 | 88°F | 77°F | 93°F 2002 | 69°F 2011 | 32% | 0% |
| Sep 11 | 88°F | 77°F | 94°F 2023 | 69°F 2017 | 32% | 0% |
| Sep 12 | 88°F | 77°F | 95°F 2019 | 69°F 2017 | 32% | 0% |
| Sep 13 | 88°F | 76°F | 95°F 2019 | 66°F 2015 | 31% | 0% |
| Sep 14 | 88°F | 76°F | 94°F 1995 | 68°F 2015 | 31% | 0% |
| Sep 15 | 88°F | 76°F | 95°F 1995 | 70°F 2011 | 31% | 0% |
| Sep 16 | 87°F | 76°F | 95°F 1995 | 67°F 2011 | 30% | 0% |
| Sep 17 | 87°F | 76°F | 94°F 1991 | 69°F 2008 | 30% | 0% |
| Sep 18 | 87°F | 75°F | 95°F 2018 | 71°F 2000 | 29% | 0% |
| Sep 19 | 87°F | 75°F | 95°F 2018 | 69°F 1991 | 29% | 0% |
| Sep 20 | 87°F | 75°F | 95°F 1995 | 64°F 1991 | 29% | 0% |
| Sep 21 | 86°F | 75°F | 96°F 1997 | 64°F 1991 | 28% | 0% |
| Sep 22 | 86°F | 74°F | 96°F 1997 | 61°F 1995 | 28% | 0% |
| Sep 23 | 86°F | 74°F | 95°F 2000 | 62°F 1995 | 28% | 0% |
| Sep 24 | 86°F | 74°F | 93°F 1993 | 64°F 1999 | 27% | 0% |
| Sep 25 | 85°F | 74°F | 92°F 1993 | 65°F 2000 | 27% | 0% |
| Sep 26 | 85°F | 73°F | 92°F 1993 | 62°F 2000 | 27% | 0% |
| Sep 27 | 85°F | 73°F | 92°F 2019 | 62°F 1991 | 26% | 0% |
| Sep 28 | 85°F | 73°F | 91°F 2009 | 62°F 1991 | 26% | 0% |
| Sep 29 | 84°F | 73°F | 94°F 1994 | 62°F 1996 | 26% | 0% |
| Sep 30 | 84°F | 72°F | 91°F 1994 | 64°F 2003 | 25% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- September 1
- sunrise 6:37 AM, sunset 7:22 PM
- September 30
- sunrise 6:53 AM, sunset 6:46 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00053917 (New Orleans Lakefront AP), public domain. Records: NOAA GHCN-Daily, station USW00053917, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.