Captiva Sea Temperature

Looking to find out what the sea water temperature in Captiva is for today and the next few days? Below are data and charts that will give you information about sea temperatures in Captiva and nearby locations.

Water temperature in Captiva right now

Below is the current sea temperature for Captiva, United States on January 10, 2026.

Today

Yesterday

A week ago

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

The average sea temperature for Captiva on January 10 over the last 10 years is 19.95° C (67.91° F), with a low temperature of 17.72° C (63.9° F) and a high of 22.67° C (72.81° F).

Analysis and forecast for Captiva water temperatures

The water temperature in Captiva today is the same as the average temperature of 19.95° C (67.91° F) and the temperature on this day last year was 19.95° C (67.91° F).

The chart and table below shows the change in water temperature in Captiva over the last 30 days:

DateTemperature (Celsius)Temperature (Fahrenheit)
January 1019.95° C67.91° F
January 920.13° C68.23° F
January 820.34° C68.6° F
January 720.55° C68.99° F
January 620.52° C68.94° F
January 520.76° C69.37° F
January 420.89° C69.6° F
January 320.91° C69.63° F
January 220.94° C69.7° F
January 120.93° C69.68° F
December 3120.96° C69.74° F
December 3020.98° C69.76° F
December 2920.97° C69.75° F
December 2820.91° C69.64° F
December 2720.8° C69.43° F
December 2620.82° C69.47° F
December 2520.99° C69.78° F
December 2420.94° C69.69° F
December 2321.11° C70° F
December 2221.37° C70.46° F
December 2121.62° C70.92° F
December 2021.67° C71.01° F
December 1921.81° C71.25° F
December 1821.86° C71.34° F
December 1721.73° C71.12° F
December 1621.69° C71.05° F
December 1521.78° C71.21° F
December 1421.86° C71.34° F
December 1321.95° C71.51° F
December 1222° C71.6° F

The actual nearshore temperatures may vary by several degrees and this can also be heavily affected by weather. Strong winds can cause cold, deep waters to replace the surface waters that had been warmed by the sun, and heavy rain can also reduce the temperature of the sea surface temperature as well.

Water temperature in Captiva by month

The chart below shows the monthly average water temperature in Captiva.

For more detailed information on how the sea temperature in Captiva changes for each month of the year, choose from the months below.

Captiva map and nearby water temperatures

Captiva sea temperature map

Locations near Captiva

Why measure sea surface temperatures (SST) in Captiva?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Captiva because they want to understand and learn how the ocean communicates with the atmosphere of Earth.

SST is one measure that provides information on the global climate, and it can be used to predict the weather in Captiva as well as atmospheric model simulations and to study marine ecosystems in the area.

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Captiva comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.