Louisiana Weather & Climate: the United States of America

Climate by month across Louisiana, the United States of America, average temperatures, rainfall and the best time to visit.

Climate overview of Louisiana

Louisiana in the United States of America sees its peak temperatures in August (33°C (91°F)) and its coolest in January (16°C (61°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from New Orleans, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

In Louisiana, during the months of March, April, October and November you can expect comfortable weather, with average temperatures ranging from 21°C (70°F) to 27°C (81°F).

June, July and August are generally the hottest months of the year.

Precipitation in Louisiana varies considerably throughout the year. The wettest conditions occur in August with 219 mm (8.6 in) of rain, while November stays relatively dry with 66 mm (2.6 in). The region experiences its rainy season during July and August, when monthly rainfall can range from 190 mm (7.5 in) to 219 mm (8.6 in).

May is the sunniest period, with ideal conditions for exploring the region and all it has to offer.

Explore Louisiana by month

Pick a month to see the average temperature, rainfall and sunshine in Louisiana - and find the best time to visit. (based on New Orleans)

Popular cities by month

Compare cities per month. Toggle cities on/off.

New Orleans Baton Rouge Houma Metairie Slidell Hammond
Day temperature (°C)
Monthly rainfall (mm)
Monthly sunshine (hours)

Climate map of Louisiana

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

Compare popular cities

Average daytime and nighttime temperatures, yearly rainfall and sunshine.

New Orleans 17°C (63°F) 33°C (91°F) 7°C (45°F) 25°C (77°F) 1664 mm (66 in) 2,640 hours
Baton Rouge 17°C (63°F) 33°C (91°F) 5°C (41°F) 23°C (73°F) 1723 mm (68 in) 2,723 hours
Houma 17°C (63°F) 33°C (91°F) 6°C (43°F) 24°C (75°F) 1725 mm (68 in) 2,640 hours
Metairie 17°C (63°F) 33°C (91°F) 7°C (45°F) 26°C (79°F) 1575 mm (62 in) 2,640 hours
Slidell 16°C (61°F) 33°C (91°F) 5°C (41°F) 23°C (73°F) 1498 mm (59 in) 2,640 hours
Hammond 17°C (63°F) 34°C (93°F) 4°C (39°F) 23°C (73°F) 1602 mm (63 in) 2,640 hours

Places in Louisiana, the United States of America

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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Bucket list

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