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How does yearly precipitation vary across the Sea of Okhotsk region?

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Vertical physical map showing the seas of Japan and Okhotsk, highlighting underwater basins, trenches, and ridges, as well as the coastlines and boundaries of Russia, China, North Korea, South Korea, and Japan. Major cities, islands, and peninsulas such as Vladivostok, Tokyo, Hokkaido, Sakhalin, Kamchatka Peninsula, and the Kuril Islands are labeled. Water depths are indicated with color shading, and an inset locator map shows the region's position in East Asia.
Sea of Okhotsk

Yearly precipitation across the Sea of Okhotsk region varies significantly based on geographic location, generally increasing from the north to the south and southeast.1

The average annual precipitation levels are as follows:

  • North: 16 inches (400 mm)1
  • West: 28 inches (710 mm)1
  • South and Southeast: Approximately 41 inches (1,040 mm)1

This variation is largely influenced by the region's climate patterns; the northern and western areas are characterized by a continental climate with very little precipitation during the winter months, while the southern and southeastern areas experience a milder marine climate due to their proximity to the Pacific Ocean.1