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New Orleans weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit New Orleans?
For a warm holiday, the best week has been 24–30 April (Weather Index 93). Several start dates remain plausible, and the best timing varies between years. June, July and August are warmest (31°C), October and November are driest and June has the most sun.
- Warmest
- June, July and August 31°C
- Coolest
- January 16°C
- Driest
- October and November 25% rain-day chance
- Wettest
- July 71% rain-day chance
- Sunniest
- June 12 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in New Orleans
New Orleans historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 16.0 | 8.7 | 31.3 | 9.7 | 99.4 | 7.6 |
| February | 19.2 | 12.0 | 35.7 | 10.0 | 97.1 | 7.9 |
| March | 21.9 | 15.1 | 34.2 | 10.6 | 110.7 | 9.4 |
| April | 24.3 | 17.7 | 32.7 | 9.8 | 100.5 | 10.2 |
| May | 28.0 | 22.1 | 36.1 | 11.2 | 130.8 | 11.4 |
| June | 30.5 | 25.2 | 54.3 | 16.3 | 163.5 | 11.6 |
| July | 31.1 | 26.1 | 71.0 | 22.0 | 181.7 | 11.2 |
| August | 31.2 | 26.0 | 63.5 | 19.7 | 219.6 | 10.3 |
| September | 29.9 | 24.2 | 39.7 | 11.9 | 130.9 | 10.4 |
| October | 26.2 | 19.6 | 24.8 | 7.7 | 92.3 | 9.9 |
| November | 21.2 | 14.0 | 25.3 | 7.6 | 84.0 | 8.3 |
| December | 18.0 | 11.2 | 33.2 | 10.3 | 95.4 | 7.3 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.