New Orleans weather in December
December in New Orleans: nice, rainy, with clean air — a great time to visit.
#6 of 12 months in New Orleans · #172 of 604 destinations to visit in December · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
New Orleans climate normals — December
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 18°C / 64°F | |
| Rainfall | 85 mm / 3.3 in | 🌧 rainy |
| Rainy days | 10 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 10°C / 49°F | |
| Sunshine | 7.4 h/day | |
| Daylight | 10.3 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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New Orleans in December — FAQ
- Is December a good time to visit New Orleans?
- December in New Orleans: nice, rainy, with clean air — a great time to visit. It ranks #6 of 12 months for New Orleans on SeasonMap's comfort score (79/100).
- What is the weather like in New Orleans in December?
- In December, New Orleans averages a daily high of 18.4°C and a low of 12°C, with about 84.7 mm of rain over roughly 9.8 rainy days.
- What is the air quality in New Orleans in December?
- New Orleans has a mean US Air Quality Index of about 33 in December.