New Orleans Weather in September

With daytime temperatures of 31°C (88°F) and nighttime lows of 23°C (73°F), September in New Orleans brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 155 mm (6.1 in) falls on average.

Rainfall in New Orleans in September

Historically, September sees about 13 days of rain, with a monthly average of 155 mm (6.1 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in New Orleans in September

In September, New Orleans sees very high temperatures, with highs of 31°C (88°F). Nights drop to around 23°C (73°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. With overnight lows of 23°C (73°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in New Orleans in September

There are approximately 227 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in New Orleans in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

Average water temperature in September

At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

Should you favor a climate that's both dry and comfortably warm, October and November typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.