Miyakojima Sea Temperature

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

Water temperature in Miyakojima right now

Below is the current sea temperature for Miyakojima, Japan on January 10, 2026.

Today

Yesterday

A week ago

Water at this temperature is very pleasant to swim in and if you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

The average sea temperature for Miyakojima on January 10 over the last 10 years is 23.59° C (74.45° F), with a low temperature of 22.11° C (71.8° F) and a high of 24.95° C (76.91° F).

Analysis and forecast for Miyakojima water temperatures

The water temperature in Miyakojima today is the same as the average temperature of 23.59° C (74.45° F) and the temperature on this day last year was 23.59° C (74.45° F).

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

DateTemperature (Celsius)Temperature (Fahrenheit)
January 1023.59° C74.45° F
January 923.75° C74.75° F
January 823.81° C74.86° F
January 723.83° C74.9° F
January 623.69° C74.64° F
January 523.77° C74.78° F
January 423.79° C74.82° F
January 323.72° C74.7° F
January 223.57° C74.42° F
January 123.55° C74.38° F
December 3123.73° C74.72° F
December 3023.88° C74.98° F
December 2923.76° C74.77° F
December 2823.74° C74.73° F
December 2723.88° C74.97° F
December 2623.84° C74.9° F
December 2524.02° C75.23° F
December 2423.95° C75.11° F
December 2323.97° C75.14° F
December 2224.21° C75.59° F
December 2124.37° C75.87° F
December 2024.44° C76° F
December 1924.5° C76.1° F
December 1824.51° C76.12° F
December 1724.43° C75.98° F
December 1624.45° C76° F
December 1524.49° C76.08° F
December 1424.79° C76.62° F
December 1324.9° C76.81° F
December 1224.92° C76.85° 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 Miyakojima by month

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

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

Miyakojima map and nearby water temperatures

Miyakojima sea temperature map

Why measure sea surface temperatures (SST) in Miyakojima?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Miyakojima 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 Miyakojima 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 Miyakojima 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.