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The oceans play critical roles in the physical climate system of Earth.As seawater is a fluid,currents in the ocean can move water over great distances and carry heat and other ocean properties from one geographic area to another.The equator-to-pole energy transport by the ocean is important in reducing the pole-to-equator temperature gradient.Horizontal and vertical transport of energy by the ocean can also alter the nature of regional climates by controlling the local sea surface temperature (SST).Gradients of SST within the oceans are important in determining the location of precipitation over the tropics,including the monsoon regions.Models and empirical evidence for this suggest the influence of the tropical oceans on the Asian monsoon.We examine relationship between Indian Ocean sea surface temperature (SST) variability and the All Pakistan Summer Monsoon Rainfall Index (APSMRI).There is a strong correlation between SST and APSMRI.It shows that SST is a strong predictor for the prediction of Pakistan rainfall.