Measurements:
°C
°F
CURRENT WEATHER
05:35
Grand Isle
50°F
SW 14 mph
Feels like: 46°F
Precip: 0%
World Resorts USA Grand Isle Weather

7 Day Weather Forecast

12.22
sun
DAY
52°F
SW 14 mph
precip
0%
NIGHT
56°F
W 12 mph
precip
0%
12.23
mon
DAY
62°F
W 9 mph
precip
0%
NIGHT
62°F
SW 7 mph
precip
0%
12.24
tue
DAY
64°F
W 8 mph
precip
0%
NIGHT
68°F
N 11 mph
precip
100%
12.25
wed
DAY
72°F
N 8 mph
precip
0%
NIGHT
70°F
NW 11 mph
precip
0%
12.26
thu
DAY
70°F
NW 14 mph
precip
100%
NIGHT
70°F
N 12 mph
precip
0%
12.27
fri
DAY
70°F
NW 13 mph
precip
42%
NIGHT
70°F
W 20 mph
precip
55%
12.28
sat
DAY
70°F
W 14 mph
precip
70%
NIGHT
70°F
W 8 mph
precip
0%

Grand Isle Sea Water Temperature in December, °F

Select Year: 2024 2023 2022

The average sea surface temperature in December 2024 for Grand Isle was 19.0°F. The maximum and minimum values were 17.7°F and 21.0°F respectively.

Grand Isle on the Weather Map

Best Time to Visit Grand Isle
The most sunny months:
October 15 days
May 13 days
January 12 days
The most warm months:
August 89.9 °F
July 89.2 °F
June 87.5 °F
Warmest sea temperature:
August 92.2 °F
July 91.1 °F
June 88.7 °F
The most cold months:
January 60.7 °F
February 62.6 °F
December 64.7 °F
The most rainy months:
July 6 days
August 5 days
June 4 days
The most windy months:
November 12 mph
April 12 mph
January 12 mph
more details