Weather in Marco Island: July
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Average day temperature: | 88.1°F |
| Average night temperature: | 79.8°F | |
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Sea water temperature: | 87.2°F |
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Number of sunny days: | 9 days |
| Day length: | 13.3 - 13.7 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 2.5 in. | |
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forecast
| Marco Island |
temperature
| Marco Island |
Air temperature in July, °F
The highest day temperature during July of 2026 was 95°F. At the same time the lowest night temperature was 74°F. Daily and nightly averages during July were 90.3°F and 78.2°F.
Sea water temperature in Marco Island in July, °F
The average sea water temperature in July of 2026 was 88.0°F. The highest and lowest sea temperatures during the month were 89.2°F and 86.9°F.
Mostly all days in July are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in July, in.
Precipitation total value in Marco Island in July is 2.5 in. Other months of the year show relatively similar values.
The average wind speed value in July is 7.4 mph It makes July lest windy month of the year.
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 July is: 8.1.
Best time for vacation in Marco Island
Marco Island on a weather map
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