Average sea water temperature in July:
+87.2°F
| Minimum sea water temperature in July: | 91.2°F |
| Maximum sea water temperature in July: | 82.0°F |
Daily 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.
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Monthly sea water temperature in Grand Isle, °F
Which USA resorts have warmest sea in July?
| Place name | July 2025 | July 2024 |
|---|---|---|
| New Orleans | 87.4°F | 87.1°F |
| Clearwater Beach | 87.1°F | 88.3°F |
| St. Petersburg | 87.0°F | 88.0°F |
| Sarasota | 86.9°F | 87.9°F |
| Siesta Key | 86.9°F | 87.9°F |
| Pensacola | 86.9°F | 87.3°F |
| Tampa | 86.8°F | 87.4°F |
| Key West | 86.7°F | 87.6°F |
| Orange Beach | 86.7°F | 86.7°F |
| Pensacola Beach | 86.7°F | 87.1°F |
| Naples | 86.6°F | 87.2°F |
| Cape Coral | 86.4°F | 87.2°F |
| Galveston | 86.4°F | 86.3°F |
| Galveston Island | 86.4°F | 86.4°F |
| Miami | 86.3°F | 86.9°F |
| Panama City Beach | 86.3°F | 86.8°F |
| Houston | 86.3°F | 86.4°F |
| Destin | 86.3°F | 86.6°F |
| Everglades | 86.0°F | 87.9°F |
| Miami Beach | 86.0°F | 86.5°F |
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: 23:28
March 19, thursday
0000
61°F
W
7 mph
7 mph
0300
61°F
W
5 mph
5 mph
0600
63°F
SW
5 mph
5 mph
0900
63°F
SW
6 mph
6 mph
1200
64°F
NW
6 mph
6 mph
1500
66°F
NW
6 mph
6 mph
1800
66°F
N
9 mph
9 mph
2100
66°F
NE
9 mph
9 mph
