Marco Island water temp

This data the coastal Marco Island ocean water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current ocean temperature in Marco Island

Water temperature in Marco Island today is 84.6°F. Based on our historical data over a period of ten years, the warmest water in this day in the Gulf of Mexico near Marco Island was recorded in 2024 and was 87.3°F, and the coldest was recorded in 2019 at 82.4°F. Sea water temperature in Marco Island is expected to drop to 83.5°F in the next 10 days. September average water temperature in Marco Island is 85.8°F, the minimum temperature is 81.9°F, and the maximum is 88.9°F.

The swimming season in Marco Island lasts from January to December, twelve months per year! During those months, Marco Island water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Marco Island in winter reaches 70°F, in spring 77.2°F, in summer the average temperature rises to 86.4°F, and in autumn it is 81.1°F.

Marco Island water temperature now

The ocean salinity in Marco Island is 36.02‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Marco Island for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Marco Island. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Marco Island. Data in table shown for September 26, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Marco Island

Marco Island weather forecast

Current temperature and weather

Data in a table show Marco Island temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Marco Island.

0-3 h	3-6 h	6-9 h	9-12 h
77.9°F	75.9°F	74.7°F	80.2°F

12-15 h	15-18 h	18-21 h	21-24 h
84.7°F	85.1°F	83.8°F	82.6°F

Marco Island water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Marco Island. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Marco Island on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Marco Island

The nearest beaches and cities from Marco Island with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Tigertail Beach	84.6°F	86°F		0' 3"
Goodland	84°F	89.6°F		0' 3"
Keewaydin	84.4°F	89.6°F		0' 3"
Lowdermilk Beach	84.4°F	89.6°F		0' 3"
Park Shore	84.6°F	89.6°F		0' 2"
Moorings	84.6°F	89.6°F		0' 2"
Clam Pass Beach	84.6°F	89.6°F		0' 2"
Everglades City	85.1°F	89.6°F		0' 2"
North Naples	84.9°F	87.8°F		0' 2"
Vanderbilt Beach	84.9°F	87.8°F		0' 2"

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Marco Beach

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Our report for Marco Island is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.