Weather in Grand Isle: May
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Average day temperature: | 78.7°F |
| Average night temperature: | 75.8°F | |
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Sea water temperature: | 79.7°F |
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Number of sunny days: | 13 days |
| Day length: | 13.3 - 13.9 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.6 in. | |
| more information | ||
14 days
forecast
forecast
| Grand Isle |
sea water
temperature
temperature
| Grand Isle |
Air temperature in May, °F
Show year:
2024
2023
2022
The highest day temperature during May of 2024 was 84°F. At the same time the lowest night temperature was 73°F. Day and night temperature averages during May were 79.8°F and 77.9°F.
Sea water temperature in Grand Isle in May, °F
Show year:
2024
2023
2022
The average sea water temperature in May of 2024 was 80.3°F. The highest and lowest sea temperatures during the month were 85.6°F and 76.1°F.
Sunny, partly cloudy and cloudy days
Mostly all days in May are sunny but cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Grand Isle in May is 1.6 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 11.5 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.3.
Best time for vacation in Grand Isle
Grand Isle on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Grand Isle
Local time: 19:05
December 21, saturday
2100
52°F
SW
15 mph
15 mph
December 22, sunday
0000
50°F
SW
16 mph
16 mph
0300
50°F
SW
15 mph
15 mph
0600
50°F
SW
14 mph
14 mph
0900
50°F
SW
16 mph
16 mph
1200
52°F
SW
14 mph
14 mph
1500
54°F
SW
11 mph
11 mph
1800
54°F
SW
14 mph
14 mph
