Osaka Sea Temperature

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

Water temperature in Osaka right now

Below is the current sea temperature for Osaka, Japan on 29th March 2024.

13.44° C

(56.19° F)

  • yesterday: 13.84° C (56.91° F)
  • a week ago: 10.38° C (50.68° F)

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a very big risk.

The average sea temperature for Osaka on March 29th over the last 10 years is 11.91° C (53.44° F), with a low temperature of 9.92° C (49.86° F) and a high of 13.63° C (56.53° F).

Analysis and forecast for Osaka water temperatures

The water temperature in Osaka today is higher than the average temperature of 11.91° C (53.44° F) and the temperature on this day last year, 29th March 2023, was 13.63° C (56.53° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
March 29 13.44° C 56.19° F
March 28 13.84° C 56.91° F
March 27 10.62° C 51.12° F
March 26 10.53° C 50.95° F
March 25 10.87° C 51.57° F
March 24 10.67° C 51.21° F
March 23 10.24° C 50.43° F
March 22 10.38° C 50.68° F
March 21 10.56° C 51.01° F
March 20 10.34° C 50.61° F
March 19 10.31° C 50.56° F
March 18 10.64° C 51.15° F
March 17 10.74° C 51.33° F
March 16 10.73° C 51.31° F
March 15 10.37° C 50.67° F
March 14 9.76° C 49.57° F
March 13 9.94° C 49.89° F
March 12 9.82° C 49.68° F
March 11 9.7° C 49.46° F
March 10 9.54° C 49.17° F
March 9 9.51° C 49.12° F
March 8 9.7° C 49.46° F
March 7 10.16° C 50.29° F
March 6 9.85° C 49.73° F
March 5 9.76° C 49.57° F
March 4 9.74° C 49.53° F
March 3 9.72° C 49.5° F
March 2 9.78° C 49.6° F
March 1 9.87° C 49.77° F
February 29 9.84° C 49.71° F
February 28 9.82° C 49.68° 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 Osaka by month

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

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

Osaka map and nearby water temperatures

Locations near Osaka

The highest temperature in Japan today is 24.48° C (76.06° F) in Yonakuni. The lowest is in Hojo, where the temperature of the water is -0.62° C (30.88° F).

Why measure sea surface temperatures (SST) in Osaka?

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

  • "Osaka Sea Temperature". SeaTemperatures.net. Accessed on March 29, 2024. http://seatemperatures.net/asia/japan/osaka/.

  • "Osaka Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/asia/japan/osaka/. Accessed 29 March, 2024

  • Osaka Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/asia/japan/osaka/.