World Resorts USA Grand Isle Weather

Grand Isle 14 Days Forecast

09.04
thu
Day
72°F
W 20 mph
Precip.
0%
Night
70°F
W 19 mph
Precip.
0%
10.04
fri
Day
72°F
W 17 mph
Precip.
0%
Night
70°F
W 14 mph
Precip.
0%
11.04
sat
Day
72°F
NW 16 mph
Precip.
0%
Night
70°F
NW 15 mph
Precip.
0%
12.04
sun
Day
73°F
NW 15 mph
Precip.
0%
Night
72°F
NW 19 mph
Precip.
0%
13.04
mon
Day
73°F
NW 16 mph
Precip.
74%
Night
72°F
NW 19 mph
Precip.
28%
14.04
tue
Day
73°F
NW 14 mph
Precip.
0%
Night
73°F
NW 14 mph
Precip.
20%
15.04
wed
Day
75°F
NW 13 mph
Precip.
78%
Night
73°F
NW 9 mph
Precip.
0%
16.04
thu
Day
75°F
N 11 mph
Precip.
69%
Night
73°F
N 8 mph
Precip.
0%
17.04
fri
Day
73°F
NW 9 mph
Precip.
0%
Night
73°F
NW 10 mph
Precip.
0%
18.04
sat
Day
73°F
NW 14 mph
Precip.
63%
Night
73°F
N 9 mph
Precip.
0%
19.04
sun
Day
73°F
NW 12 mph
Precip.
0%
Night
73°F
NW 11 mph
Precip.
0%
20.04
mon
Day
75°F
NW 12 mph
Precip.
0%
Night
73°F
NW 12 mph
Precip.
0%
21.04
tue
Day
75°F
NW 11 mph
Precip.
0%
Night
75°F
NW 12 mph
Precip.
0%
22.04
wed
Day
75°F
NW 13 mph
Precip.
0%
Night
75°F
NW 11 mph
Precip.
0%

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 75.2°F. The highest and lowest sea temperatures during the month were 80.1°F and 71.6°F.

Air temperature in Grand Isle, °F

Precipitation total in Grand Isle, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Grand Isle

Sunniest months:
October 18 days
September 15 days
November 14 days
Warmest months:
August 85.8 °F
July 85.4 °F
June 83.7 °F
Warmest sea temp:
August 88.0 °F
July 87.2 °F
June 85.0 °F
Coldest months:
January 58.3 °F
February 60.8 °F
December 62.4 °F
Rainiest months:
July 5 days
June 4 days
August 4 days
Windiest months:
January 13.2 mph
April 13.0 mph
March 12.9 mph

Grand Isle on a weather map

Grand Isle
+72°F
W 22 mph
Feels like: +72°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+72°F
+72°F
+68°F
+59°F
+70°F
+72°F
+68°F
+34°F
+61°F
+55°F
+66°F
+66°F
+63°F
+50°F
24 Hours Forecast
Grand Isle
Local time: 04:37
April 09, thursday
0600
72°F
W
21 mph
0900
72°F
W
21 mph
1200
72°F
W
20 mph
1500
72°F
W
21 mph
1800
70°F
W
22 mph
2100
70°F
W
21 mph
April 10, friday
0000
70°F
W
19 mph
0300
72°F
W
17 mph
Units of measurement: °C / °F