14.10
wed
wed
Day
79°F
W 6 mph
Precip.
7%
7%
Night
79°F
NW 13 mph
Precip.
8%
8%
15.10
thu
thu
Day
79°F
NW 11 mph
Precip.
6%
6%
Night
79°F
W 11 mph
Precip.
10%
10%
16.10
fri
fri
Day
79°F
S 6 mph
Precip.
19%
19%
Night
77°F
S 27 mph
Precip.
4%
4%
17.10
sat
sat
Day
66°F
SW 22 mph
Precip.
2%
2%
Night
70°F
SW 17 mph
Precip.
3%
3%
18.10
sun
sun
Day
75°F
W 19 mph
Precip.
24%
24%
Night
77°F
W 19 mph
Precip.
22%
22%
19.10
mon
mon
Day
79°F
W 21 mph
Precip.
16%
16%
Night
77°F
W 17 mph
Precip.
9%
9%
20.10
tue
tue
Day
79°F
SW 17 mph
Precip.
12%
12%
Night
75°F
SW 13 mph
Precip.
26%
26%
21.10
wed
wed
Day
79°F
SW 13 mph
Precip.
7%
7%
Night
77°F
W 8 mph
Precip.
13%
13%
22.10
thu
thu
Day
79°F
SW 6 mph
Precip.
4%
4%
Night
77°F
NE 5 mph
Precip.
10%
10%
23.10
fri
fri
Day
77°F
SW 13 mph
Precip.
15%
15%
Night
75°F
W 11 mph
Precip.
8%
8%
24.10
sat
sat
Day
75°F
W 9 mph
Precip.
12%
12%
Night
77°F
NW 11 mph
Precip.
14%
14%
25.10
sun
sun
Day
77°F
W 7 mph
Precip.
23%
23%
Night
75°F
W 7 mph
Precip.
25%
25%
26.10
mon
mon
Day
75°F
SW 14 mph
Precip.
21%
21%
Night
73°F
W 8 mph
Precip.
25%
25%
27.10
tue
tue
Day
75°F
W 6 mph
Precip.
12%
12%
Night
77°F
NW 8 mph
Precip.
20%
20%
sea water
temperature
temperature
| Grand Isle |
monthly
weather
weather
| Grand Isle |
current
weather
weather
| Grand Isle |
7 days
forecast
forecast
| Grand Isle |
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 80.1°F. The highest and lowest sea temperatures during the month were 84.7°F and 76.5°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
Grand Isle on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Grand Isle
Local time: 07:12
October 14, wednesday
0900
79°F
W
7 mph
7 mph
1200
79°F
W
6 mph
6 mph
1500
79°F
NW
8 mph
8 mph
1800
79°F
NW
7 mph
7 mph
2100
79°F
W
13 mph
13 mph
October 15, thursday
0000
79°F
NW
13 mph
13 mph
0300
79°F
NW
11 mph
11 mph
0600
79°F
W
11 mph
11 mph
