World Resorts USA Grand Isle Weather

Grand Isle 14 Days Forecast

26.02
thu
Day
64°F
N 15 mph
Precip.
0%
Night
64°F
NE 9 mph
Precip.
0%
27.02
fri
Day
66°F
NE 8 mph
Precip.
0%
Night
64°F
SW 9 mph
Precip.
0%
28.02
sat
Day
64°F
W 10 mph
Precip.
0%
Night
59°F
W 10 mph
Precip.
0%
01.03
sun
Day
61°F
NW 11 mph
Precip.
0%
Night
66°F
W 11 mph
Precip.
0%
02.03
mon
Day
68°F
NW 7 mph
Precip.
83%
Night
66°F
NW 11 mph
Precip.
0%
03.03
tue
Day
66°F
NW 15 mph
Precip.
79%
Night
66°F
NW 17 mph
Precip.
0%
04.03
wed
Day
66°F
NW 16 mph
Precip.
0%
Night
68°F
NW 10 mph
Precip.
0%
05.03
thu
Day
68°F
NW 12 mph
Precip.
70%
Night
68°F
NW 13 mph
Precip.
0%
06.03
fri
Day
68°F
NW 14 mph
Precip.
0%
Night
70°F
NW 15 mph
Precip.
0%
07.03
sat
Day
68°F
NW 11 mph
Precip.
74%
Night
70°F
W 14 mph
Precip.
0%
08.03
sun
Day
68°F
NW 16 mph
Precip.
54%
Night
68°F
NW 14 mph
Precip.
0%
09.03
mon
Day
68°F
NW 17 mph
Precip.
47%
Night
68°F
NW 15 mph
Precip.
0%
10.03
tue
Day
66°F
NW 17 mph
Precip.
0%
Night
68°F
NW 19 mph
Precip.
22%
11.03
wed
Day
68°F
NW 18 mph
Precip.
42%
Night
68°F
NW 17 mph
Precip.
73%

Sea water temperature in February, °F

Show year:
2026
2025
2024

The average sea water temperature in February of 2026 was 61.2°F. The highest and lowest sea temperatures during the month were 66.6°F and 53.4°F.

Sea water temperature in March, °F

Show year:
2025
2024
2023

The average sea water temperature in March of 2025 was 67.3°F. The highest and lowest sea temperatures during the month were 72.7°F and 61.7°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 61.2 °F
December 62.4 °F
Rainiest months:
July 5 days
June 4 days
August 4 days
Windiest months:
January 13.2 mph
March 13.0 mph
April 13.0 mph

Grand Isle on a weather map

Current weather
12:30
Grand Isle
+64°F
N 15 mph
Feels like: +64°F
Precip.: 0%
Places in USA:
Name
°F
Washington
+52°F
Hawaii
+70°F
Honolulu
+70°F
Las Vegas
+63°F
Los Angeles
+61°F
Miami
+73°F
Miami Beach
+75°F
Maui
+66°F
New York
+43°F
San Diego
+63°F
San Francisco
+55°F
Sarasota
+68°F
Tampa
+68°F
Houston
+73°F
Chicago
+34°F
all places
24 Hours Forecast
Grand Isle
Local time: 12:30
February 26, thursday
1500
64°F
NE
12 mph
1800
64°F
NE
9 mph
2100
64°F
NE
10 mph
February 27, friday
0000
64°F
NE
9 mph
0300
64°F
NE
7 mph
0600
64°F
NE
7 mph
0900
64°F
NE
11 mph
1200
66°F
NE
8 mph
Units of measurement: °C / °F