Weather in Marco Island: May
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Average day temperature: | 85.5°F |
| Average night temperature: | 74.3°F | |
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Sea water temperature: | 82.5°F |
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Number of sunny days: | 16 days |
| Day length: | 13.1 - 13.6 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.1 in. | |
| more information | ||
14 days
forecast
forecast
| Marco Island |
sea water
temperature
temperature
| Marco Island |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 92°F. At the same time the lowest night temperature was 68°F. Daily and nightly averages during May were 87.3°F and 74.3°F.
Sea water temperature in Marco Island in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 83.2°F. The highest and lowest sea temperatures during the month were 85.3°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 1.1 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 8.9 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: 9.7.
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: 15:25
June 08, monday
1800
88°F
NE
6 mph
6 mph
2100
82°F
W
5 mph
5 mph
June 09, tuesday
0000
81°F
NW
11 mph
11 mph
0300
81°F
NW
11 mph
11 mph
0600
81°F
NW
7 mph
7 mph
0900
81°F
W
9 mph
9 mph
1200
84°F
NW
6 mph
6 mph
1500
84°F
NE
8 mph
8 mph
