New Orleans in September
Average high 89°F 32°C, low 71°F 22°C, about 6.0 in 153 mm of rain. The air is oppressive (average dew point 71°F 22°C). September is inside the Atlantic hurricane season (1 June to 30 November).
What's on in September
| Event | 2026 | 2027 | 2028 |
|---|---|---|---|
| Southern Decadence | 3–7 Sep | 2–6 Sep | 31 Aug – 4 Sep |
fixed · announced · held · usual pattern, not announced · month only
What to wear
The lightest clothes you own: breathable cotton or linen, a hat, sunscreen, and a spare shirt. The air is heavy: plan outdoor walking for the morning and expect to sweat. Rain is frequent: a light rain jacket earns its space.
Climate at a glance
- Average high
- 89°F 32°C
- Average low
- 71°F 22°C
- Dew point
- 71°F 22°C · oppressive
- Rainfall
- 6.0 in 153 mm
TerraClimate 1991–2020 normals for the French Quarter. All months.