03.07
fri
fri
Day
84°F
NW 7 mph
Precip.
4%
4%
Night
84°F
N 5 mph
Precip.
4%
4%
04.07
sat
sat
Day
84°F
NW 6 mph
Precip.
5%
5%
Night
84°F
NE 6 mph
Precip.
5%
5%
05.07
sun
sun
Day
84°F
NW 7 mph
Precip.
58%
58%
Night
84°F
NE 10 mph
Precip.
11%
11%
06.07
mon
mon
Day
86°F
N 9 mph
Precip.
5%
5%
Night
82°F
NE 11 mph
Precip.
9%
9%
07.07
tue
tue
Day
86°F
N 7 mph
Precip.
4%
4%
Night
84°F
NE 11 mph
Precip.
6%
6%
08.07
wed
wed
Day
86°F
N 8 mph
Precip.
4%
4%
Night
84°F
NE 11 mph
Precip.
6%
6%
09.07
thu
thu
Day
86°F
NE 9 mph
Precip.
13%
13%
Night
84°F
NE 12 mph
Precip.
7%
7%
10.07
fri
fri
Day
84°F
NW 8 mph
Precip.
5%
5%
Night
84°F
N 12 mph
Precip.
11%
11%
11.07
sat
sat
Day
86°F
NW 9 mph
Precip.
10%
10%
Night
84°F
NE 12 mph
Precip.
8%
8%
12.07
sun
sun
Day
88°F
NE 11 mph
Precip.
5%
5%
Night
84°F
E 15 mph
Precip.
7%
7%
13.07
mon
mon
Day
90°F
E 11 mph
Precip.
4%
4%
Night
86°F
E 18 mph
Precip.
27%
27%
14.07
tue
tue
Day
84°F
NW 7 mph
Precip.
9%
9%
Night
82°F
E 11 mph
Precip.
9%
9%
15.07
wed
wed
Day
86°F
E 7 mph
Precip.
9%
9%
Night
81°F
N 8 mph
Precip.
9%
9%
16.07
thu
thu
Day
82°F
NW 7 mph
Precip.
7%
7%
Night
84°F
N 9 mph
Precip.
18%
18%
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 July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 88.3°F. The highest and lowest sea temperatures during the month were 90.5°F and 86.2°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: 02:19
July 03, friday
0300
84°F
NW
6 mph
6 mph
0600
84°F
W
2 mph
2 mph
0900
84°F
W
6 mph
6 mph
1200
84°F
NW
7 mph
7 mph
1500
86°F
NW
11 mph
11 mph
1800
84°F
NW
11 mph
11 mph
2100
84°F
N
7 mph
7 mph
July 04, saturday
0000
84°F
N
5 mph
5 mph
