Grand Isle Weather in May

What's the weather like in Grand Isle (Louisiana) in May 2024?

The climate in Grand Isle during May can be summarized as hot, humid and wet.

May is in the spring in Grand Isle and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 20°C (67°F) is normal.

Grand Isle weather averages (imperial / metric)
Daytime temperature 28.7°C 83.7°F
Nightly temperature 19.6°C 67.3°F
Average temperature 24.2°C 75.5°F
Daily sunshine 10 hrs
Avg rainfall 124 mm 4.9 ins
Rainy days 7 days
Sea temperature 25°C 77°F
Humidity 74%
Windspeed 14kph 9 mph

On average May is the 6th wettest month of the year in Grand Isle with around 124mm 4.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 10 hours of sunshine per day.

May temperatures in Grand Isle

Grand Isle average temperature in May

May rainfall

Grand Isle average rain in May

May hourly sunshine

Grand Isle average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Grand Isle in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Grand Isle weather stats

Grand Isle weather statistics
Hottest month: July 32.1°C 89.8°F
Driest month: October 82mm 3.2ins
Sunniest month: April 9.7hrs
Coldest month: January 16.3°C 61.3°F
Wettest month: August 169mm 6.7ins
Map showing location of Grand Isle (29.23662, -89.98729) Grand Isle map pin © Google

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