Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
As Grand Isle welcomes April, the average high-temperature sees a modest rise, transitioning from an agreeable 68.9°F (20.5°C) in March to a moderately hot 74.3°F (23.5°C). A minimal decline in temperature from daytime highs is anticipated throughout the April nights, averaging a comfortable 67.3°F (19.6°C).Humidity
The average relative humidity in April in Grand Isle, Louisiana, is 76%.Rainfall
The months with the least rainfall in Grand Isle are February and April Rain falls for 8.8 days and accumulates 0.87" (22mm) of rain.Snowfall
In Grand Isle, snow does not fall in February through December.Ocean temperature
In Grand Isle, the average seawater temperature in April is 73.6°F (23.1°C).Note: Think about diving into 73.6°F (23.1°C) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 77°F (25°C) and 82.4°F (28°C).
Daylight
The average length of the day in April is 12h and 53min.On the first day of April in Grand Isle, sunrise is at 6:48 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:35 pm CDT.
Sunshine
The average sunshine in April is 10.3h.UV index
In April, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 during April translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be attentive! The UV exposure is heightened with reflections from sand and water.
Frequently asked questions
What is the temperature in April in Grand Isle?
What is the average humidity in April in Grand Isle?
What is the driest month in Grand Isle?
How much does it rain in Grand Isle in April?
When it does not snow in Grand Isle?
What is the water temperature in April in Grand Isle?
What is the average length of the day in April in Grand Isle?
When is the sunrise / sunset in April in Grand Isle?
How many hours of sunshine does Grand Isle have in April?
What is the UV index reading in April in Grand Isle?
Average temperature in April
Grand Isle, LA
- Average high temperature in April: 74.3°F
The warmest months (with the highest average high temperature) are July and August (86.9°F).
The month with the lowest average high temperature is January (61.7°F).
- Average low temperature in April: 67.3°F
The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (53.1°F).
Average pressure in April
Grand Isle, LA
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in April
Grand Isle, LA
- Average wind speed in April: 12.1mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in April
Grand Isle, LA
- Average humidity in April: 76%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Grand Isle, LA
- Average rainfall in April: 0.87"
The wettest month (with the highest rainfall) is August (4.72").
The driest months (with the least rainfall) are February and April (0.87").
Average rainfall days in April
Grand Isle, LA
- Average rainfall days in April: 8.8 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.5 days).
Average snowfall days in April
Grand Isle, LA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in April
Grand Isle, LA
- Average sea temperature in April: 73.6°F
The best month for swimming (with the highest average sea temperature) is August (87.5°F).
The coldest month (with the lowest average sea temperature) is January (61.4°F).
Average daylight in April /
Average sunshine in April
Grand Isle, LA
- Average daylight in April: 12h and 5min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in April: 10h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in April
Grand Isle, LA
- Average sunshine days in April: 18.6 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is August (6.5 days).
Average UV index in April
Grand Isle, LA
- Average UV index in April: 6
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in April
Grand Isle, LA
- Average cloud cover in April: 28
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is May (Cloud cover 23).
Average visibility in April
Grand Isle, LA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Grand Isle, Louisiana, USA
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