Grand Isle in may: average Weather, Temperature and Climate
Weather in Grand Isle in may 2025
The weather in Grand Isle in may comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout may
good weather UV index: 7
Weather at 6am
76°F
Clear/Sunny
50% of time
24%
15%
7%
Weather at 12pm
81°F
Clear/Sunny
63% of time
15%
13%
5%
Weather at 6pm
79°F
Clear/Sunny
64% of time
18%
12%
3%
Weather at 3am
76°F
51%
27%
15%
5%
Evolution of daily average temperature and precipitation in Grand Isle in may
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Grand Isle in may.
The climate of Grand Isle in may is good
The weather in may in Grand Isle is quite dry (with 3.4in of rainfall over 6 days). The situation is deteriorating compared to the previous month since in april there is an average of 2.6in of rainfall over 4 days.
The climate quite enjoyable around this city may. Temperatures are up to 81°F. The minimum is 76°F. Thus, the mean temperature average in may in Grand Isle is 79°F. These temperatures are far removed from those records observed in Grand Isle in the month of may with a maximum record of 90°F in 2018 and a minimum record of 54°F in 2013.
On average, in Grand Isle, the days of may last 13:37. The sun rises at 06:08 and sunset is at 19:45.
With good weather conditions, this month is recommended to go in Grand Isle.
Seasonal average climate and temperature of Grand Isle in may
Check below seasonal norms These datas are set from the weather statements earlier years of the month of may.
| May | |||||
| Outside temperature | |||||
| Average temperature | 79°F | ||||
| Highest temperature | 81°F | ||||
| Lowest temperature | 76°F | ||||
| Highest record temperature | 90°F (2018) | ||||
| Lowest record temperature | 54°F (2013) | ||||
| Number of days at +86°F | 2 day(s) (6%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 79°F | ||||
| Lowest sea temperature | 73°F | ||||
| Highest sea temperature | 85°F | ||||
| Wind | |||||
| Wind speed | 21km/h | ||||
| Wind temperature | 76°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.4in | ||||
| Number of days with rainfall | 6 day(s) (18%) | ||||
| Record daily rainfall | 2.5in (2021) | ||||
| Other climate data | |||||
| Humidity | 81% | ||||
| Visibility | 9.75km | ||||
| Cloud cover | 23% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:08 | ||||
| Time of sunset | 19:45 | ||||
| Length of day | 13:37 | ||||
| Our opinion about the weather in may | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last may?
Here is the day by day recorded weather in Grand Isle in may 2024:
76°F to 76°F
74°F to 76°F
76°F to 76°F
76°F to 77°F
76°F to 77°F
76°F to 77°F
77°F to 79°F
77°F to 79°F
79°F to 79°F
79°F to 86°F
74°F to 79°F
77°F to 79°F
79°F to 81°F
74°F to 83°F
76°F to 81°F
77°F to 79°F
79°F to 81°F
76°F to 81°F
77°F to 81°F
79°F to 81°F
77°F to 79°F
77°F to 79°F
77°F to 81°F
79°F to 81°F
79°F to 83°F
81°F to 83°F
81°F to 83°F
81°F to 83°F
79°F to 83°F
81°F to 83°F
81°F to 81°F
Map: other cities in Louisiana in may
Cities near Grand Isle:
| Port Sulphur in may | good weather |
| New Orleans in may | good weather |
| Houma in may | good weather |
| Slidell in may | good weather |
| Morgan City in may | good weather |
| Baton Rouge in may | good weather |
| Marsh Island in may | good weather |
| New Iberia in may | perfect weather |
| Pecan Island in may | good weather |
| Opelousas in may | good weather |
| Marksville in may | good weather |
| Oakdale in may | good weather |
Click over cities on the map for information about the weather in may.
Grand Isle
perfect weather
good
tolerable
bad
very bad
Weather data for Grand Isle in may:
Weather data for Grand Isle for may 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.