Temperature in Louisiana in September

Daytime highs, nighttime lows and the warmest cities in Louisiana, the United States of America this September.

Louisiana, the United States of America, a region in the United States of America, typically experiences very warm weather in September, with maximum daytime temperatures around 31°C (88°F) and nighttime temperatures around 23°C (73°F) in New Orleans.

What is the temperature of the different cities in Louisiana, the United States of America in September?

Explore the map below to discover average September temperatures at the top destinations in Louisiana. For a deeper dive, simply click on any destination dot.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit Louisiana, check out our Louisiana's climate page.

See also: Louisiana weather by month.

Best Places to Visit in Louisiana in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Louisiana.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

See all September weather averages, cities and regions in Louisiana

Louisiana temperatures in September: frequently asked questions

How hot does it get in Louisiana, the United States of America in September?

Expect daytime temperatures around 31°C (88°F) in New Orleans. That makes September a very high month for Louisiana, the United States of America.

How cold does it get at night in Louisiana, the United States of America in September?

After dark, New Orleans cools to about 23°C (73°F) on an average September night.

How much sun does Louisiana, the United States of America get in September?

The weather is predominantly sunny, with an estimated total of around 227 hours of sunshine in New Orleans. This means many sunny days, which creates a cheerful atmosphere during this month.

What is the water temperature in September?

The water temperature averages approximately 28°C (82°F) in New Orleans this month, a perfect temperature for swimming and cooling off.

Interested in more climate information?

We have much more information about the climate in Louisiana.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Yosemite National Park is definitely worth a visit

Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States

Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes

A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States

Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.
Must visit in the United States of America →