St. Martin's Island Sea Temperature

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

Water temperature in St. Martin's Island right now

Below is the current sea temperature for St. Martin's Island, Bangladesh on January 10, 2026.

Today

Yesterday

A week ago

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

The average sea temperature for St. Martin's Island on January 10 over the last 10 years is 25.59° C (78.07° F), with a low temperature of 24.2° C (75.56° F) and a high of 26.92° C (80.46° F).

Analysis and forecast for St. Martin's Island water temperatures

The water temperature in St. Martin's Island today is the same as the average temperature of 25.59° C (78.07° F) and the temperature on this day last year was 25.59° C (78.07° F).

The chart and table below shows the change in water temperature in St. Martin's Island over the last 30 days:

DateTemperature (Celsius)Temperature (Fahrenheit)
January 1025.59° C78.07° F
January 925.76° C78.36° F
January 825.72° C78.29° F
January 725.83° C78.49° F
January 625.81° C78.46° F
January 525.91° C78.63° F
January 425.87° C78.56° F
January 325.9° C78.62° F
January 226.06° C78.9° F
January 126.13° C79.04° F
December 3126.2° C79.16° F
December 3026.32° C79.37° F
December 2926.41° C79.54° F
December 2826.46° C79.62° F
December 2726.55° C79.78° F
December 2626.74° C80.13° F
December 2526.66° C79.99° F
December 2426.58° C79.85° F
December 2326.61° C79.9° F
December 2226.65° C79.98° F
December 2126.78° C80.21° F
December 2026.89° C80.41° F
December 1927.09° C80.77° F
December 1827.23° C81.01° F
December 1727.27° C81.09° F
December 1627.34° C81.2° F
December 1527.39° C81.3° F
December 1427.35° C81.23° F
December 1327.33° C81.19° F
December 1227.42° C81.36° 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 St. Martin's Island by month

The chart below shows the monthly average water temperature in St. Martin's Island.

For more detailed information on how the sea temperature in St. Martin's Island changes for each month of the year, choose from the months below.

St. Martin's Island map and nearby water temperatures

St. Martin's Island sea temperature map

Why measure sea surface temperatures (SST) in St. Martin's Island?

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