Water temperature of the Sea of Japan in march Where to swim in the Sea of Japan in march 2025?
Several countries border the seaside of the Sea of Japan, including: South Korea, Japan and Russia. We measure the water temperature daily in these countries and archive it in order to calculate monthly averages, like those of the month of march.
Several countries border the seaside of the Sea of Japan, including: South Korea, Japan and Russia.
We measure the water temperature daily in these countries and archive it in order to calculate monthly averages, like those of the month of march.
The seasonal average for the water temperature in the month of march is between 32°F and 59°F. The lowest sea temperature measured this month is 30°F and the highest is 60°F.
The sea temperature map of the Sea of Japan in march
The map below presents a monthly average of the water temperature of the Sea of Japan for the month of march for several coastal cities. You can zoom and move around on the map. By clicking on the markers, you can see sea temperature details by city in march.
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWhere can you swim in the Sea of Japan in march?
Below, see the average temperatures measured in march in the different countries on the shores of the Sea of Japan.
South Korea
46°F to 58°F
freezing swimmingJapan
39°F to 59°F
freezing swimmingRussia
32°F to 33°F
freezing swimmingWater temperature of the Sea of Japan: choose another month
See monthly seasonal averages of the water temperature of the Sea of Japan by clicking on the links below: