DACF Home → Bureaus & Programs → Maine Geological Survey → Explore Maine Geology → Coastal Marine Geology → Frequently Asked Questions → Sea-level Rise
A tide gauge in Portland, ME has been monitoring tidal fluctuations and sea level since 1912. Based on this data, it appears that sea level has been rising at Portland at a rate of about 0.61 feet/century (1.87 mm/yr).
Last updated on October 6, 2005