World sea water temperatures

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 84.4°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 2007 and was 87.1°F, and the coldest was recorded in 2016 at 83.3°F. Sea water temperature in Dunedin is expected to rise to 85.1°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


September 5, 2025
today temp
84.4°F
September 4, 2025
yesterday temp
84.7°F


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 5, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

0-3 h3-6 h6-9 h9-12 h
0' 7"0' 9"0' 10"0' 10"
0.19 m0.24 m0.25 m0.26 m
12-15 h15-18 h18-21 h21-24 h
0' 11"0' 11"0' 11"0' 10"
0.29 m0.29 m0.28 m0.26 m

Surf report in Dunedin

Dunedin wave height and direction

Dunedin weather forecast

Dunedin wind speed and direction

Current temperature and weather

Data in a table show Dunedin temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Dunedin.

0-3 h3-6 h6-9 h9-12 h
80.8°F78.8°F77.7°F79.9°F
12-15 h15-18 h18-21 h21-24 h
85.6°F88.2°F86.5°F81.9°F

You may also be interested in other sections of our site for Dunedin: Sunrise and Sunset, Tides

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

MonthAvrMinMax
January63.3°F51.1°F72°Fcold
Ocean water temperature in Dunedin in January
February64.2°F57.2°F75.4°Fcold
Ocean water temperature in Dunedin in February
March68.2°F57.4°F79.7°Fwarm
Ocean water temperature in Dunedin in March
April73.9°F63.7°F79.9°Fwarm
Ocean water temperature in Dunedin in April
May79.5°F73°F86.7°Fhot
Ocean water temperature in Dunedin in May
June84.2°F76.8°F88.7°Fhot
Ocean water temperature in Dunedin in June
July86.4°F83.3°F89.6°Fhot
Ocean water temperature in Dunedin in July
August86.7°F83.5°F91.9°Fhot
Ocean water temperature in Dunedin in August
September84.9°F80.8°F88°Fhot
Ocean water temperature in Dunedin in September
October79.5°F68.7°F86.7°Fhot
Ocean water temperature in Dunedin in October
November72.1°F64°F81.1°Fwarm
Ocean water temperature in Dunedin in November
December66.9°F55.8°F72.5°Fcold
Ocean water temperature in Dunedin in December

Chart monthly average water temperature in Dunedin

Water temperature in Dunedin

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Nearby beaches and cities

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

WaterWeatherWave
Caladesi Island84.4°F87.8°F0' 10"
Sand Key Beach84.6°F87.8°F0' 10"
Honeymoon Island84.2°F87.8°F0' 10"
Fred Howard Park84°F87.8°F0' 10"
Sand Key84.9°F87.8°F0' 10"
Belleair84.6°F87.8°F0' 9"
Anclote83.8°F87.8°F0' 10"
Anclote Key83.8°F87.8°F0' 10"
Indian Shores84.9°F87.8°F0' 9"
Redington Shores84.9°F87.8°F0' 9"

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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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.

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