Milne Bay Sea Temperature

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

Water temperature in Milne Bay right now

Below is the current sea temperature for Milne Bay, Papua New Guinea on January 10, 2026.

Today

Yesterday

A week ago

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 Milne Bay on January 10 over the last 10 years is 30.1° C (86.17° F), with a low temperature of 29.54° C (85.17° F) and a high of 31° C (87.8° F).

Analysis and forecast for Milne Bay water temperatures

The water temperature in Milne Bay today is the same as the average temperature of 30.1° C (86.17° F) and the temperature on this day last year was 30.1° C (86.17° F).

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

DateTemperature (Celsius)Temperature (Fahrenheit)
January 1030.1° C86.17° F
January 930.11° C86.21° F
January 829.97° C85.94° F
January 729.96° C85.92° F
January 629.93° C85.87° F
January 530.11° C86.2° F
January 430.12° C86.22° F
January 330.2° C86.36° F
January 230.14° C86.24° F
January 130.15° C86.27° F
December 3130.02° C86.04° F
December 3030.01° C86.02° F
December 2930.02° C86.03° F
December 2830.07° C86.13° F
December 2730.12° C86.22° F
December 2630.09° C86.16° F
December 2530.04° C86.07° F
December 2429.97° C85.94° F
December 2329.96° C85.92° F
December 2229.94° C85.89° F
December 2129.89° C85.8° F
December 2029.87° C85.77° F
December 1929.86° C85.75° F
December 1829.88° C85.79° F
December 1729.89° C85.81° F
December 1629.84° C85.7° F
December 1529.79° C85.62° F
December 1429.74° C85.54° F
December 1329.7° C85.45° F
December 1229.71° C85.47° 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 Milne Bay by month

The chart below shows the monthly average water temperature in Milne Bay.

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

Milne Bay map and nearby water temperatures

Milne Bay sea temperature map

Locations near Milne Bay

Why measure sea surface temperatures (SST) in Milne Bay?

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