Big Pine Key water temp

This data the coastal Big Pine Key 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 Big Pine Key

Water temperature in Big Pine Key today is 85.8°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Big Pine Key was recorded in 2024 and was 88.2°F, and the coldest was recorded in 2013 at 83.8°F. Sea water temperature in Big Pine Key is expected to drop to 84.7°F in the next 10 days. September average water temperature in Big Pine Key is 85.8°F, the minimum temperature is 82.8°F, and the maximum is 88.7°F.

The swimming season in Big Pine Key lasts from January to December, twelve months per year! During those months, Big Pine Key water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Big Pine Key in winter reaches 75.7°F, in spring 78.8°F, in summer the average temperature rises to 85.8°F, and in autumn it is 82.9°F.

Big Pine Key water temperature now

The ocean salinity in Big Pine Key is 36.40‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Big Pine Key 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 Big Pine Key. 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 Big Pine Key. Data in table shown for September 21, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Big Pine Key

Big Pine Key weather forecast

Current temperature and weather

Data in a table show Big Pine Key temperature today (September 21, 2025). For more information and forecast for a few days, go to the weather forecast Big Pine Key.

0-3 h	3-6 h	6-9 h	9-12 h
82.6°F	81.9°F	81.5°F	81.7°F

12-15 h	15-18 h	18-21 h	21-24 h
83.3°F	83.8°F	83.1°F	83.1°F

Big Pine Key water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Big Pine Key. 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 Big Pine Key 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 Big Pine Key

The nearest beaches and cities from Big Pine Key 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
Ramrod Key	85.8°F	84.2°F		1' 4"
Little Torch Key	85.8°F	84.2°F		1' 4"
Summerland Key	86°F	84.2°F		1' 4"
Looe Key	86.5°F	84.2°F		1' 5"
Sugarloaf Key	86.2°F	84.2°F		1' 4"
Sombrero Beach	85.8°F	82.4°F		1' 5"
Key Colony Beach	85.8°F	82.4°F		1' 5"
Vaca Key	85.6°F	82.4°F		1' 5"
Cocoa Plum Beach	85.6°F	82.4°F		1' 5"
Geiger Beach	86.2°F	84.2°F		1' 5"

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Our report for Big Pine Key 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.