Saipan Sea Temperature

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

Water temperature in Saipan right now

Below is the current sea temperature for Saipan, Northern Mariana Islands on 15th July 2025.

30.04° C

(86.08° F)

  • yesterday: 29.77° C (85.59° F)
  • a week ago: 30.25° C (86.45° F)

Water at this temperature is very warm and you should look to bathe only. Avoid any kind of strenuous swimming as there is a real risk of heat stroke at this temperature.

The average sea temperature for Saipan on July 15th over the last 10 years is 29.7° C (85.46° F), with a low temperature of 27.78° C (82° F) and a high of 30.35° C (86.63° F).

Analysis and forecast for Saipan water temperatures

The water temperature in Saipan today is higher than the average temperature of 29.7° C (85.46° F) and the temperature on this day last year, 15th July 2024, was 30.04° C (86.07° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 15 30.04° C 86.08° F
July 14 29.77° C 85.59° F
July 14 29.77° C 85.59° F
July 13 29.56° C 85.21° F
July 12 29.62° C 85.32° F
July 11 29.59° C 85.26° F
July 10 30.17° C 86.31° F
July 9 30.14° C 86.25° F
July 8 30.25° C 86.45° F
July 7 30.08° C 86.14° F
July 6 30.48° C 86.86° F
July 5 30.06° C 86.11° F
July 4 29.93° C 85.87° F
July 3 29.89° C 85.8° F
July 2 30.22° C 86.4° F
July 1 29.74° C 85.53° F
June 30 29.87° C 85.77° F
June 29 29.96° C 85.93° F
June 28 29.79° C 85.62° F
June 27 29.73° C 85.51° F
June 26 29.94° C 85.89° F
June 25 30.32° C 86.58° F
June 24 30.24° C 86.43° F
June 23 30.24° C 86.43° F
June 22 30.32° C 86.58° F
June 21 30.4° C 86.72° F
June 20 30.33° C 86.59° F
June 19 29.94° C 85.89° F
June 18 30.22° C 86.4° F
June 17 30.16° C 86.29° 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 Saipan by month

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

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

Saipan map and nearby water temperatures

Locations near Saipan

The highest temperature in Northern Mariana Islands today is 30.63° C (87.14° F) in Agrihan. The lowest is in Rota, where the temperature of the water is 30.01° C (86.02° F).

Why measure sea surface temperatures (SST) in Saipan?

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

  • "Saipan Sea Temperature". SeaTemperatures.net. Accessed on July 15, 2025. http://seatemperatures.net/australia-and-oceania/northern-mariana-islands/saipan/.

  • "Saipan Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/australia-and-oceania/northern-mariana-islands/saipan/. Accessed 15 July, 2025

  • Saipan Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/australia-and-oceania/northern-mariana-islands/saipan/.