Current sea water temperature:
+74.3°F
| Minimum sea water temperature in November: | 79.9°F |
| Maximum sea water temperature in November: | 63.9°F |
| Average sea water temperature in November: | 71.5°F |
| more information | |
14 days
forecast
forecast
| Grand Isle |
monthly
weather
weather
| Grand Isle |
Sea water temperature for the last 10 days:
| October 28 | 74.3°F | October 23 | 74.8°F |
| October 27 | 74.1°F | October 22 | 75.0°F |
| October 26 | 74.1°F | October 21 | 75.6°F |
| October 25 | 74.8°F | October 20 | 78.1°F |
| October 24 | 75.0°F | October 19 | 77.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Grand Isle?
Based on the data about daily sea water temperature for the last three years the warmest sea in Grand Isle was noticed in August, July and June.
Monthly Sea Temperatures in Grand Isle, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 87.7°F. The highest and lowest sea temperatures during the month were 90.7°F and 84.4°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 87.4°F. The highest and lowest sea temperatures during the month were 89.6°F and 85.1°F.
Sea water temperature in June, °F
Show year:
2026
2025
2024
The average sea water temperature in June of 2026 was 85.5°F. The highest and lowest sea temperatures during the month were 88.7°F and 82.0°F.
current
weather
weather
| Grand Isle |
weather in
November
November
| Grand Isle |
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: 12:32
November 04, wednesday
1500
79°F
NE
9 mph
9 mph
1800
75°F
NE
9 mph
9 mph
2100
75°F
E
4 mph
4 mph
November 05, thursday
0000
73°F
SE
5 mph
5 mph
0300
72°F
S
7 mph
7 mph
0600
72°F
S
8 mph
8 mph
0900
72°F
S
6 mph
6 mph
1200
73°F
W
3 mph
3 mph
