Mombetsu Sea Temperature

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

Water temperature in Mombetsu right now

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

Today

Yesterday

A week ago

Water at this temperature is freezing cold, can cause pain and takes your breath away. Unless you are very experienced and are under strict supervision, swimming in this water for more than a few minutes can be very dangerous. Be careful, stay safe, and enjoy the rush of endorphins and exhileration from a brief cold water swim.

The average sea temperature for Mombetsu on January 10 over the last 10 years is 0.29° C (32.52° F), with a low temperature of -0.67° C (30.79° F) and a high of 1.09° C (33.96° F).

Analysis and forecast for Mombetsu water temperatures

The water temperature in Mombetsu today is the same as the average temperature of 0.29° C (32.52° F) and the temperature on this day last year was 0.29° C (32.52° F).

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

DateTemperature (Celsius)Temperature (Fahrenheit)
January 100.29° C32.52° F
January 90.31° C32.56° F
January 80.38° C32.69° F
January 70.6° C33.07° F
January 60.64° C33.16° F
January 50.51° C32.92° F
January 40.53° C32.95° F
January 30.59° C33.06° F
January 20.67° C33.21° F
January 10.83° C33.5° F
December 310.9° C33.61° F
December 301.1° C33.99° F
December 291.24° C34.24° F
December 281.29° C34.32° F
December 271.39° C34.5° F
December 261.62° C34.92° F
December 251.65° C34.97° F
December 241.66° C35° F
December 231.78° C35.2° F
December 221.99° C35.57° F
December 212.09° C35.76° F
December 202.17° C35.91° F
December 192.82° C37.07° F
December 183.12° C37.62° F
December 173.27° C37.89° F
December 163.48° C38.26° F
December 153.5° C38.29° F
December 143.66° C38.6° F
December 133.84° C38.91° F
December 123.9° C39.01° 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 Mombetsu by month

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

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

Mombetsu map and nearby water temperatures

Mombetsu sea temperature map

Why measure sea surface temperatures (SST) in Mombetsu?

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