This study is based on NASA Physical Oceanography Distributed Active Archive Center's SST data daily taken for 2006-2010 years at nodes of a regular grid having discretion 0,08° . 0,08° in latitude and longitude. A dynamic-stochastic model of the sea surface temperature variation in the Japan Sea is used to assess the relative importance of different components such as zonal and meridian advections; horizontal turbulent heat flows; and heat flows on the air-water boundary. The greatest contribution to the SST variation is shown to have been made by heat flows on the air-water boundary, and the least one - by horizontal turbulent heat flow. The zonal advection contributes more than the meridian advection does. It is concluded that in 2010 there was a reverse of the components in terms of their contributions to the SST variability in the Japan Sea.