Dunedin (FL) water temp

This data the coastal Dunedin 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 Dunedin

Water temperature in Dunedin today is 84.7°F. Based on our historical data over a period of ten years, the warmest water in this day in the Gulf of Mexico near Dunedin was recorded in 2018 and was 86.9°F, and the coldest was recorded in 2008 at 81.9°F. Sea water temperature in Dunedin is expected to drop to 81.5°F in the next 10 days. September average water temperature in Dunedin is 84.9°F, the minimum temperature is 80.8°F, and the maximum is 88°F.

The swimming season in Dunedin lasts from March to December. During those months, Dunedin water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Dunedin in winter reaches 64.8°F, in spring 73.9°F, in summer the average temperature rises to 85.8°F, and in autumn it is 78.8°F.

Dunedin water temperature now

The ocean salinity in Dunedin is 35.64‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Dunedin 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 Dunedin. 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 Dunedin. 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 Dunedin

Dunedin weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
79.5°F	77.5°F	75.2°F	80.6°F

12-15 h	15-18 h	18-21 h	21-24 h
90.1°F	88.2°F	84°F	81.7°F

Dunedin water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Dunedin. 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 Dunedin 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 Dunedin

The nearest beaches and cities from Dunedin 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
Caladesi Island	84.7°F	87.8°F		0' 7"
Sand Key Beach	84.4°F	87.8°F		0' 7"
Honeymoon Island	85.3°F	87.8°F		0' 8"
Fred Howard Park	85.5°F	87.8°F		0' 8"
Sand Key	84.2°F	87.8°F		0' 7"
Belleair	84.4°F	87.8°F		0' 6"
Anclote	85.8°F	87.8°F		0' 8"
Anclote Key	85.8°F	87.8°F		0' 8"
Indian Shores	84°F	87.8°F		0' 6"
Redington Shores	84°F	87.8°F		0' 6"

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Our report for Dunedin 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.