USA
New Orleans in September: weather & travel advice
This month's data profile
Rain shapes the decision
New Orleans in September is climatically mixed. The average daily high is around 29 °C. With about 15 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
58/100 · #8
Warmth
#4
Dryness
#9
Sun
#6
Published best categories: none
New Orleans · SeptemberPhoto: Tim Wilson from Blaine, MN, USA · CC BY 2.0Climate facts
- Average high
- 29 °C
- Average low
- 24 °C
- Rainy days (est.)
- 15 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 77 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| August | 31 | 27 | 23 | 172 | 7.2 | 76 | 2.6 | 41 |
| September (selected) | 29 | 24 | 15 | 136 | 6.4 | 77 | 3.0 | 58 |
| October | 25 | 19 | 9 | 93 | 5.5 | 77 | 3.3 | 83 |
How do the previous and next months compare?
Baseline: September (58/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| August | -17 | +1.7 °C | +2.3 °C | +8.3 | +36.2 mm | +0.8 h | -0.7 % | -0.4 m/s |
| October | +25 | -3.9 °C | -5.2 °C | -5.9 | -43 mm | -0.9 h | +0.4 % | +0.3 m/s |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is New Orleans in September?
The average daily high is around 29 °C, with an average daily low of about 24 °C.
Does it rain a lot in New Orleans in September?
The curated estimate is about 15 rainy days per month, not a directly measured long-term average. Total precipitation averages around 136 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit New Orleans?
By the climate score, March, April, October and November are the strongest months for New Orleans. September is not among them.