Sea surface temperature (SST) is primary factor for understanding, quantifying and predicting the marine resources and important parameter in earth science model. The variability of SST in the coastal water increasing gradually over the recent years, which subsequently affects the marine habitats as well as the human beings located over the coastal zone. Gulf of Manner (GOM) is one of the coastal zone with marine national park receives several rivers covered with almost 21 small islands, pearl banks, coral reefs, and high variety of plants and animals. In this study, MODerate-resolution Imaging Spectroradiometer (MODIS) satellite images were used to understand the long term changes and spatial variation of SST over theGulf of Manner (GOM) located in the south-eastern part of India. To achieve the goal, satellite data from 2000-2020 over the GOM were used to understand the SST variations. This analysis helps to predict the potential fishing zone and primary productivity. This SST analysis over the coastal environments regionally provides solution for several challenges in management and utilisation of coastal resources.