Blackwater Sound water temp

This data the coastal Blackwater Sound 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 Blackwater Sound

Water temperature in Blackwater Sound today is 86.9°F. Based on our historical data over a period of ten years, the warmest water in this day in the Gulf of Mexico near Blackwater Sound was recorded in 2022 and was 86.5°F, and the coldest was recorded in 2012 at 83.3°F. Sea water temperature in Blackwater Sound is expected to drop to 84°F in the next 10 days. September average water temperature in Blackwater Sound is 85.6°F, the minimum temperature is 82°F, and the maximum is 88.7°F.

The swimming season in Blackwater Sound lasts from January to December, twelve months per year! During those months, Blackwater Sound water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Blackwater Sound in winter reaches 75.2°F, in spring 78.8°F, in summer the average temperature rises to 85.6°F, and in autumn it is 82.6°F.

Blackwater Sound water temperature now

The ocean salinity in Blackwater Sound is 36.60‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Blackwater Sound 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 Blackwater Sound. 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 Blackwater Sound. 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 Blackwater Sound

Blackwater Sound weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
81°F	80.6°F	80.2°F	82°F

12-15 h	15-18 h	18-21 h	21-24 h
83.3°F	83.3°F	82.4°F	81.9°F

Blackwater Sound water temperature by month

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

The nearest beaches and cities from Blackwater Sound 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
Elliott Key	85.6°F	86°F		0' 8"
Cutler Bay	85.6°F	87.8°F		0' 7"
Palmetto Bay	85.6°F	86°F		0' 7"
Cutler	85.5°F	86°F		0' 7"
King's Bay	85.6°F	86°F		0' 7"
Fiesta Key	86.2°F	82.4°F		0' 7"
Pinecrest	85.6°F	84.2°F		0' 8"
Layton	86.4°F	82.4°F		0' 7"
Long Key	86°F	82.4°F		0' 8"
Coral Gables	85.6°F	87.8°F		0' 7"

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Our report for Blackwater Sound 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.