2025 Compare Climate & Weather:
New Orleans, LA vs Grand Isle, LA

Highlights

On average, there are 223 sunny days per year in Grand Isle. New Orleans averages 216 sunny days per year. The US average is 205 sunny days.

Grand Isle, Louisiana gets 61.9 inches of rain, on average, per year. New Orleans, Louisiana gets 63.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Grand Isle averages 0 inches of snow per year. New Orleans averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Grand Isle, Louisiana
Summer High: the July high is around 89.4 degrees
Winter Low: the January low is 44.8
Rain: averages 61.9 inches of rain a year
Snow: averages 0 inches of snow a year

New Orleans, Louisiana
Summer High: the July high is around 91.8 degrees
Winter Low: the January low is 45.1
Rain: averages 63.5 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Grand Isle is 7.0 (10=best), which means it is more comfortable than most places in Louisiana.

The annual BestPlaces Comfort Index for New Orleans is 6.6 (10=best), which means it is one of the least comfortable places in Louisiana.

Today's Weather - New Orleans, LA

74°F

Today's Weather - Grand Isle, LA

74°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: New Orleans / Grand Isle

August is the hottest month for New Orleans with an average high temperature of 91.8°, which ranks it as cooler than most places in Louisiana. In New Orleans, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for New Orleans are April, October and November.

August is the hottest month for Grand Isle with an average high temperature of 89.6°, which ranks it as one of the coolest places in Louisiana. In Grand Isle, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grand Isle are April, October and May.

January has the coldest nighttime temperatures for New Orleans with an average of 45.1°. This is one of the warmest places in Louisiana.

January has the coldest nighttime temperatures for Grand Isle with an average of 44.8°. This is one of the warmest places in Louisiana.

In New Orleans, there are 77.7 days annually when the high temperature is over 90°, which is about average compared to other places in Louisiana.

In Grand Isle, there are 41.0 days annually when the high temperature is over 90°, which is one of the coolest places in Louisiana.

In New Orleans, there are 4.8 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Louisiana.

In Grand Isle, there are 5.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Louisiana.

In New Orleans, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Louisiana.

In Grand Isle, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Louisiana.

June is the wettest month in New Orleans with 7.5 inches of rain, and the driest month is October with 3.8 inches. The wettest season is Autumn with 32% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 63.5 inches in New Orleans means that it is wetter than most places in Louisiana.


July is the wettest month in Grand Isle with 7.7 inches of rain, and the driest month is November with 3.6 inches. The wettest season is Autumn with 34% of yearly precipitation and 20% occurs in Summer, which is the driest season. The annual rainfall of 61.9 inches in Grand Isle means that it is wetter than most places in Louisiana.

July is the rainiest month in New Orleans with 13.9 days of rain, and April is the driest month with only 5.8 rainy days. There are 108.0 rainy days annually in New Orleans, which is rainier than most places in Louisiana. The rainiest season is Autumn when it rains 36% of the time and the driest is Summer with only a 19% chance of a rainy day.

July is the rainiest month in Grand Isle with 12.7 days of rain, and April is the driest month with only 4.8 rainy days. There are 100.2 rainy days annually in Grand Isle, which is about average compared to other places in Louisiana. The rainiest season is Autumn when it rains 36% of the time and the driest is Summer with only a 18% chance of a rainy day.

There is rarely any recorded snowfall in New Orleans, ranking it as one of the least snowy places in Louisiana.

There is rarely any recorded snowfall in Grand Isle, ranking it as one of the least snowy places in Louisiana.

Any measurable snowfall is a rare occurance in New Orleans.

Any measurable snowfall is a rare occurance in Grand Isle.