Grand Isle in august: average Weather, Temperature and Climate
Weather in Grand Isle in august 2025
The weather in Grand Isle in august comes from statistical datas on the last years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout august
tolerable weather UV index: 7
Weather at 6am
83°F
Clear/Sunny
34% of time
31%
19%
14%
Weather at 12pm
88°F
Clear/Sunny
42% of time
21%
18%
17%
Weather at 6pm
86°F
Clear/Sunny
50% of time
20%
19%
9%
Weather at 3am
83°F
40%
27%
21%
10%
Evolution of daily average temperature and precipitation in Grand Isle in august
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Grand Isle in august.
The climate of Grand Isle in august is tolerable
the weather in Grand Isle in august is wet (with 11.3in of rainfall over 16 days). It should be noted a worsening from the previous month since in july there is an average of 8in of precipitation over 13 days.
The climate pleasant around this city this month. The high seasonal norm is 88°F. In the morning the temperature drops to 83°F. Thus, the mean temperature average in august in Grand Isle is 86°F. These temperatures are far removed from those records observed in Grand Isle in august with a maximum record of 94°F in 2015 and a minimum record of 76°F in 2009. You can plan to have about 26 days with temperatures above 86°F, or 84 of the month.
Day length in Grand Isle in august is 13:12. The sun rises at 06:28 and sets at 19:40.
With a good weather, this month is advisable to go in that area in Louisiana.
Grand Isle: another month?
If you can push back the dates of your trip, we advise you to go in september to Grand Isle. more information
August: another location in Louisiana?
If you want to go to Louisiana in august, there are destinations with better weather than Grand Isle:
In august, Shreveport, Alexandria (Louisiane), Marksville, Marsh Island, Monroe and Natchitoches have good weather.
Seasonal average climate and temperature of Grand Isle in august
Check below seasonal norms These statistics are generated from the weather statements earlier years of august.
| August | |||||
| Outside temperature | |||||
| Average temperature | 86°F | ||||
| Highest temperature | 88°F | ||||
| Lowest temperature | 83°F | ||||
| Highest record temperature | 94°F (2015) | ||||
| Lowest record temperature | 76°F (2009) | ||||
| Number of days at +86°F | 26 day(s) (84%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 88°F | ||||
| Lowest sea temperature | 85°F | ||||
| Highest sea temperature | 92°F | ||||
| Wind | |||||
| Wind speed | 18km/h | ||||
| Wind temperature | 83°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 11.3in | ||||
| Number of days with rainfall | 16 day(s) (51%) | ||||
| Record daily rainfall | 7.4in (2012) | ||||
| Other climate data | |||||
| Humidity | 79% | ||||
| Visibility | 9.24km | ||||
| Cloud cover | 26% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:28 | ||||
| Time of sunset | 19:40 | ||||
| Length of day | 13:12 | ||||
| Our opinion about the weather in august | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last august?
Here is the day by day recorded weather in Grand Isle in august 2024:
85°F to 88°F
85°F to 88°F
85°F to 92°F
81°F to 86°F
85°F to 90°F
85°F to 95°F
83°F to 95°F
85°F to 92°F
85°F to 94°F
86°F to 88°F
85°F to 90°F
85°F to 88°F
85°F to 88°F
85°F to 90°F
85°F to 90°F
83°F to 88°F
86°F to 88°F
86°F to 88°F
85°F to 94°F
86°F to 92°F
86°F to 92°F
85°F to 88°F
85°F to 86°F
83°F to 86°F
85°F to 86°F
83°F to 88°F
83°F to 88°F
85°F to 85°F
85°F to 86°F
81°F to 85°F
79°F to 83°F
Map: other cities in Louisiana in august
Cities near Grand Isle:
| Port Sulphur in august | tolerable weather |
| New Orleans in august | tolerable weather |
| Houma in august | tolerable weather |
| Slidell in august | tolerable weather |
| Morgan City in august | tolerable weather |
| Baton Rouge in august | tolerable weather |
| Marsh Island in august | good weather |
| New Iberia in august | good weather |
| Pecan Island in august | good weather |
| Opelousas in august | good weather |
| Marksville in august | good weather |
| Oakdale in august | tolerable weather |
Click over cities on the map for information about the weather in august.
Grand Isle
perfect weather
good
tolerable
bad
very bad
Weather data for Grand Isle in august:
Weather data for Grand Isle for august are derived from an average of the weather forecast since 2009 in Grand Isle. There is a margin of error and these forecasts are to be considered as general information only. The weather in Grand Isle can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Grand Isle.