Measurements:
°C
°F
Grand Isle
66°F
S 17 mph
Feels like: 64°F
Precip: 0%
World Resorts USA Grand Isle Weather July Weather in Grand Isle

Grand Isle Weather: July

Average Day Temperature: 89.2°F
Average Night Temperature: 86.5°F
Sea Water Temperature: 91.1°F
Number of Sunny Days: 5 days
Sunshine Hours: 13.5 - 14.0 hours
Number of Rainy Days: 6 days
Precipitation Totals: 2.6 in

Air Temperature in July, °F

Select Year: 2024 2023 2022

The highest day temperature in July 2024 was 93°F. The lowest night temperature was 84°F. The average values for day and night temperatures during July were 89.8°F и 87.6°F respectivly.

Grand Isle Water Sea Temperature in July, °F

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for Grand Isle was 91.9°F. The maximum and minimum values were 89.6°F and 94.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in July are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in July, in

Precipitation total in July for Grand Isle is 2.6 in. It makes july one of the most rainy months of the year.

Wind Speed in July, mph

The average wind speed in July is 8.7 mph. It makes July the most windless month of the year for Grand Isle.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Grand Isle in July is 7.0 hours.

Best Time to Visit Grand Isle
The most sunny months:
October 15 days
November 13 days
May 13 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:
April 12 mph
January 12 mph
March 12 mph

Grand Isle on the Weather Map

USA Resorts:
NAME
Boston +48
Chicago +34
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +60
Los Angeles +74
Maui +74
Miami +86
New York +48
San Diego +72
San Francisco +58
Sarasota +76
Tampa +76
Washington +52
24 Hours Weather Forecast
Grand Isle
Local time: 15:29
21 nov, thursday
1800 66°F
SE
14 mph
2100 64°F
SE
15 mph
22 nov, friday
0000 64°F
SE
15 mph
0300 62°F
SE
16 mph
0600 60°F
SE
16 mph
0900 58°F
S
16 mph
1200 60°F
S
14 mph
1500 64°F
S
13 mph