Weather in Marco Island: May
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Average day temperature: | 85.2°F |
| Average night temperature: | 74.3°F | |
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Sea water temperature: | 82.4°F |
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Number of sunny days: | 15 days |
| Day length: | 13.1 - 13.6 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.0 in. | |
| more information | ||
14 days
forecast
forecast
| Marco Island |
sea water
temperature
temperature
| Marco Island |
Air temperature in May, °F
Show year:
2025
2024
2023
The highest day temperature during May of 2025 was 86°F. At the same time the lowest night temperature was 71°F. Daily and nightly averages during May were 82.2°F and 77.7°F.
Sea water temperature in Marco Island in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 83.5°F. The highest and lowest sea temperatures during the month were 88.0°F and 79.3°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 Marco Island in May is 1.0 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 8.7 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: 9.4.
Best time for vacation in Marco Island
Marco Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Marco Island
Local time: 23:13
December 05, friday
0000
68°F
SW
4 mph
4 mph
0300
68°F
NW
7 mph
7 mph
0600
64°F
W
8 mph
8 mph
0900
68°F
NW
7 mph
7 mph
1200
72°F
NW
11 mph
11 mph
1500
73°F
N
7 mph
7 mph
1800
73°F
N
8 mph
8 mph
2100
72°F
NE
6 mph
6 mph
