Climate averages 1991–2020
New Orleans weather
in July.
A hot, wet month: the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in New Orleans: daytime highs average 30.8°C and nights cool to about 25.4°C. By daytime temperature it is the warmest month of the year.
Expect about 143 mm of rain on roughly 18 days, which makes July a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 52 min on an average July day.
The nearest other city in this atlas is Metairie (8 km away). In July its highs average 31.0°C, about as warm as New Orleans, with 136 mm of rain.
Among the 498 cities listed in the United States, New Orleans ranks joint 211th of 498 for the warmest July highs and 484th of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; New Orleans is 0.5°C warmer than that mean.
From July to August, average highs fall by 0.1°C to 30.7°C, and monthly rainfall rises from 143 mm to 159 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
New Orleans climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.9°C9.1°C | 9.1°C | 113 | 9.7 | 10.510 h |
| February | 17.8°C10.7°C | 10.7°C | 108 | 8.9 | 11.111 h |
| March | 20.6°C13.6°C | 13.6°C | 114 | 9.4 | 12.012 h |
| April | 23.9°C17.1°C | 17.1°C | 99 | 8.4 | 12.913 h |
| May | 27.7°C21.1°C | 21.1°C | 91 | 9.2 | 13.614 h |
| June | 30.1°C24.3°C | 24.3°C | 131 | 15.0 | 14.014 h |
| July, selected | 30.8°C25.4°C | 25.4°C | 143 | 17.9 | 13.914 h |
| August | 30.7°C25.4°C | 25.4°C | 159 | 17.3 | 13.213 h |
| September | 28.9°C23.5°C | 23.5°C | 123 | 12.8 | 12.412 h |
| October | 25.2°C18.9°C | 18.9°C | 88 | 8.0 | 11.511 h |
| November | 20.4°C13.6°C | 13.6°C | 83 | 7.3 | 10.711 h |
| December | 17.1°C10.5°C | 10.5°C | 96 | 9.2 | 10.310 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Metairie in JulyUnited States · 8 kmHigh 31.0°C · Low 25.3°C · 136 mm rain
- Gulfport in JulyUnited States · 105 kmHigh 30.6°C · Low 25.1°C · 139 mm rain
- Baton Rouge in JulyUnited States · 120 kmHigh 31.9°C · Low 24.1°C · 132 mm rain
- Lafayette (Louisiana), United States in JulyUnited States · 189 kmHigh 31.8°C · Low 24.3°C · 124 mm rain
- Mobile in JulyUnited States · 212 kmHigh 31.2°C · Low 24.6°C · 150 mm rain
- Jackson in JulyUnited States · 261 kmHigh 32.5°C · Low 23.0°C · 102 mm rain
- Lake Charles in JulyUnited States · 302 kmHigh 31.8°C · Low 24.5°C · 114 mm rain
- Beaumont in JulyUnited States · 388 kmHigh 32.0°C · Low 24.5°C · 107 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for New Orleans) is explained once on the New Orleans year overview and on the Sources, method and limits page.