Aerosol Optical Depth (AOD) observed at Surat, Gujarat (INDIA), Coastal region near the Tapi River at the Gulf of Khambhat. Using MODIS Satellite data for Aerosol Optical Depth (AOD) have been collected from the Giovanni site (http://giovanni.gsfc.nasa.gov/giovanni/) developed by NASA. Results of the data for the 5-year period (January to December 2015-2019) have been discussed here. Daily, Monthly and Seasonal variations of Aerosol Optical depth (AOD) in relation to changes in the regional meteorological conditions. The data collected during January to December 2015-2019 indicated that annual average AOD variation. The mean annual variations of Aerosol Optical Depth (AOD) seen the maximum around the monsoon. The seasonal mean Aerosol Optical Depth (AOD) is lowest values are observed during the pre-monsoon and relatively moderate AOD is observed during the winter season. Variation of aerosol optical depth (AOD) in Post-monsoon season shows similar variation as of winter and pre-monsoon in 2016 while values get increased afterwards and reaches maximum in both Aqua and Terra observations which are mostly related to the changes in the local boundary layer.