Measurements:
°C
°F
CURRENT WEATHER
07:23
Grand Isle
68°F
N 7 mph
Feels like: 68°F
Precip: 80%
World Resorts USA Grand Isle Weather

7 Day Weather Forecast

02.21
sat
DAY
68°F
N 9 mph
precip
0%
NIGHT
66°F
S 24 mph
precip
0%
02.22
sun
DAY
54°F
S 23 mph
precip
0%
NIGHT
54°F
S 21 mph
precip
0%
02.23
mon
DAY
52°F
S 21 mph
precip
0%
NIGHT
54°F
S 18 mph
precip
0%
02.24
tue
DAY
50°F
W 2 mph
precip
0%
NIGHT
60°F
NE 14 mph
precip
0%
02.25
wed
DAY
68°F
N 20 mph
precip
0%
NIGHT
70°F
N 21 mph
precip
100%
02.26
thu
DAY
72°F
N 23 mph
precip
100%
NIGHT
60°F
S 27 mph
precip
0%
02.27
fri
DAY
60°F
SW 16 mph
precip
0%
NIGHT
60°F
SW 11 mph
precip
0%

Grand Isle Sea Water Temperature in February, °F

Select Year: 2026 2025 2024

The average sea surface temperature in February 2026 for Grand Isle was 15.8°F. The maximum and minimum values were 11.9°F and 19.0°F respectively.

Grand Isle on the Weather Map

Best Time to Visit Grand Isle
The most sunny months:
October 18 days
September 15 days
November 14 days
The most warm months:
August 89.8 °F
July 89.3 °F
June 87.5 °F
Warmest sea temperature:
August 92.2 °F
July 91.3 °F
June 88.9 °F
The most cold months:
January 59.3 °F
February 62.4 °F
December 63.8 °F
The most rainy months:
July 5 days
June 4 days
August 4 days
The most windy months:
January 13 mph
March 12 mph
April 12 mph
more details