ABSTRACT This research was carried out in December 2021-January 2022 in Dumai City Regency, Riau Province. The purpose of this study was to determine the rate of sea level rise based on tidal data analysis from 2001-2021 and to predict inundation areas in the next 20 years. This research method is a descriptive survey using remote sensing as an additional tool to show the results. The acquisit…