World Resorts USA Grand Isle Weather

Grand Isle 7 Days Forecast

12.01
mon
Day
54°F
SW 13 mph
Precip.
0%
Night
54°F
SW 10 mph
Precip.
0%
13.01
tue
Day
54°F
SW 9 mph
Precip.
0%
Night
57°F
E 9 mph
Precip.
0%
14.01
wed
Day
61°F
E 14 mph
Precip.
0%
Night
57°F
SE 19 mph
Precip.
0%
15.01
thu
Day
43°F
S 22 mph
Precip.
0%
Night
46°F
SW 15 mph
Precip.
0%
16.01
fri
Day
52°F
W 11 mph
Precip.
0%
Night
63°F
NW 17 mph
Precip.
44%
17.01
sat
Day
64°F
NW 22 mph
Precip.
0%
Night
68°F
N 23 mph
Precip.
77%
18.01
sun
Day
54°F
S 24 mph
Precip.
100%
Night
50°F
S 16 mph
Precip.
0%

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 61.0°F. The highest and lowest sea temperatures during the month were 67.6°F and 56.7°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 58.6 °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
07:17
Grand Isle
+52°F
SW 17 mph
Feels like: +46°F
Precip.: 0%
Places in USA:
Name
°F
Washington
+32°F
Hawaii
+73°F
Honolulu
+73°F
Las Vegas
+39°F
Los Angeles
+52°F
Miami
+68°F
Miami Beach
+72°F
Maui
+66°F
New York
+32°F
San Diego
+52°F
San Francisco
+45°F
Sarasota
+52°F
Tampa
+50°F
Houston
+43°F
Chicago
+25°F
all places
24 Hours Forecast
Grand Isle
Local time: 07:17
January 12, monday
0900
52°F
SW
16 mph
1200
54°F
SW
13 mph
1500
55°F
SW
13 mph
1800
54°F
SW
12 mph
2100
54°F
SW
12 mph
January 13, tuesday
0000
54°F
SW
10 mph
0300
52°F
SW
10 mph
0600
52°F
S
7 mph
Units of measurement: °C / °F