Weather in Grand Isle: May
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Average day temperature: | 78.4°F |
| Average night temperature: | 75.3°F | |
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Sea water temperature: | 79.5°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: | 4 days |
| Precipitation totals: | 1.7 in. | |
| more information | ||
14 days
forecast
forecast
| Grand Isle |
sea water
temperature
temperature
| Grand Isle |
Air temperature in May, °F
Show year:
2023
2022
2021
The highest day temperature during May of 2023 was 84°F. At the same time the lowest night temperature was 66°F. Day and night temperature averages during May were 79.0°F and 75.6°F.
Sea water temperature in Grand Isle in May, °F
Show year:
2023
2022
2021
The average sea water temperature in May of 2023 was 80.4°F. The highest and lowest sea temperatures during the month were 84.9°F and 73.2°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 1.7 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 11.3 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: 8.1.
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: 16:59
May 12, sunday
1800
79°F
NW
19 mph
19 mph
2100
79°F
NW
21 mph
21 mph
May 13, monday
0000
79°F
NW
23 mph
23 mph
0300
79°F
NW
23 mph
23 mph
0600
79°F
NW
20 mph
20 mph
0900
81°F
N
18 mph
18 mph
1200
81°F
N
23 mph
23 mph
1500
81°F
N
23 mph
23 mph
