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 10th July 2025.

29.58° C

(85.24° F)

  • yesterday: 29.8° C (85.64° F)
  • a week ago: 29.08° C (84.34° F)

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 July 10th over the last 10 years is 29.19° C (84.55° F), with a low temperature of 28.29° C (82.92° F) and a high of 29.92° C (85.86° F).

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

The water temperature in St. Martin's Island today is higher than the average temperature of 29.19° C (84.55° F) and the temperature on this day last year, 10th July 2024, was 29.61° C (85.3° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 10 29.58° C 85.24° F
July 9 29.8° C 85.64° F
July 8 28.61° C 83.5° F
July 7 28.68° C 83.62° F
July 6 28.8° C 83.84° F
July 5 28.92° C 84.06° F
July 4 28.93° C 84.07° F
July 3 29.08° C 84.34° F
July 2 29.09° C 84.36° F
July 1 29.41° C 84.94° F
June 30 29.36° C 84.85° F
June 29 29.63° C 85.33° F
June 28 29.66° C 85.39° F
June 27 29.69° C 85.44° F
June 26 29.96° C 85.93° F
June 25 29.92° C 85.86° F
June 24 29.88° C 85.78° F
June 23 29.79° C 85.62° F
June 22 29.85° C 85.73° F
June 21 30.01° C 86.02° F
June 20 30.15° C 86.27° F
June 19 30.07° C 86.13° F
June 18 30.22° C 86.4° F
June 17 30.39° C 86.7° F
June 16 30.38° C 86.68° F
June 15 30.33° C 86.59° F
June 14 30.08° C 86.14° F
June 13 30.04° C 86.07° F
June 12 30.18° C 86.32° F
June 11 30.26° C 86.47° F
June 10 30.26° C 86.47° 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

The highest temperature in Bangladesh today is 29.99° C (85.98° F) in St. Martin's Island. The lowest is in Dhaka, where the temperature of the water is 29.39° C (84.9° F).

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 atomosphere 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.

  • "St. Martin's Island Sea Temperature". SeaTemperatures.net. Accessed on July 10, 2025. http://seatemperatures.net/asia/bangladesh/st-martins-island/.

  • "St. Martin's Island Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/asia/bangladesh/st-martins-island/. Accessed 10 July, 2025

  • St. Martin's Island Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/asia/bangladesh/st-martins-island/.