Grand Isle Weather in April
What's the weather like in Grand Isle (Louisiana) in April 2025?
The climate in Grand Isle during April can be summarized as warm, humid and wet.
April is in the spring in Grand Isle and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a muggy 25°C (78°F), whilst at night 16°C (61°F) is normal.
| Daytime temperature | 25.3°C 77.5°F |
|---|---|
| Nightly temperature | 16.1°C 60.9°F |
| Average temperature | 20.7°C 69.2°F |
| Daily sunshine | 9.7 hrs |
| Avg rainfall | 120 mm 4.7 ins |
| Rainy days | 6 days |
| Sea temperature | 21.6°C 70.8°F |
| Humidity | 73% |
| Windspeed | 15.8kph 10 mph |
On average April is the 5th driest month of the year in Grand Isle with around 120mm 4.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.7 hours of sunshine per day.
April temperatures in Grand Isle
April rainfall
April hourly sunshine
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 April 2025.
Other monthly averages
Grand Isle weather stats
| 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 |
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