This graph features global sea level measurements from as far back as 800,000 years up to the present time with an atmospheric temperature overlay option. The graph is customizable and can be resized, printed, or pasted into your website. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization.
Global sea levels are updated as soon as the latest values become available. Historical data from multiple sources are combined to produce a continual record from 800,000 years ago up to the present day. Learn more about the data sources.
Free Sea Levels Graph
This interactive graph is free to use on your website. Simply choose your color theme and then copy and paste 2 lines of code. Data and source code is hosted on our servers so you do not have to worry about using up your server's bandwidth. New sea level measurement data is updated automatically when available and temperature data is updated monthly.
Zoomable and Printable
View global sea levels and/or temperature over a span of thousands of years or zoom to specific time periods. Use your fingers to pinch and zoom on a handheld device or use a mouse with a computer. Export the chart to PNG, JPG, PDF or SVG format with the click of a button or print the chart directly from the web page.
Customizable and Responsive
Choose from 4 color themes to match your website's look and feel. Customize the width and height of your graph or have it fill your entire screen. The global sea levels graph is responsive and can automatically resize to fit whatever device or screen size it is being viewed on.
Modern and paleoclimatic sea level data combined.
800,000 years ago - to 3,000 years ago
This geologic sea level reconstruction is based on the dominant pattern of variability in seven proxy sea level records, scaled to have the well-documented 130-meter range in sea level between the peak of the last Ice Age and today. The seven input series are based on a variety of approaches to extracting the sea level component from marine δ18O records – e.g., subtracting the ocean temperature component with the Mg/Ca proxy, calibrating to the sea level record from coral benchmarks, hydraulic modeling of evaporative enrichment in semi-enclosed basins, and inverse ice sheet and ocean modeling.
Credits: Spratt, R.M. and L.E. Lisiecki. 2016. A late Pleistocene sea level stack. Climate of the Past, Vol. 12, pp. 1079-1092. doi:10.5194/cp-12-1079-2016.
Global sea level variations estimated as the common component of change across 24 globally distributed, high-resolution, continuous proxy sea level records derived from coastal sediment cores. There is a small uncertainty (±2 mm/year) in the trend over the whole record, but the shorter-term century-to-century variations are robust.
Credits: Kopp, R.E., A.C. Kemp, K. Bittermann, B.P. Horton, J.P. Donnelly, W.R. Gehreis, C.C. Hay, J.X. Mitrovica, E.D. Morrow, and S. Rahmstorf. 2016. Temperature-driven global sea-level variability in the Common Era. Proceedings of the National Academy of Sciences, Vol. 113, pp. E1434-E1441. doi:10.1073/pnas.1517056113.
This instrumental reconstruction relies on the past two decades of satellite altimetry measurements to determine the dominant patterns of sea level change, and then uses longer-term tide gauge records from around the world to estimate the time-varying amplitudes of these patterns. Data available from https://www.cmar.csiro.au/sealevel/sl_data_cmar.html
Credits: Church, J.A. and N.J. White. 2011. Sea-level rise from the late 19th to the early 21st Century. Surveys in Geophysics, doi:10.1007/s10712-011-9119-1.
Year 1993 - Present Day
The Jason-2 satellite altimeter mission was launched in June 2008, extending the record of precision sea level measurements that was initiated with the launch of TOPEX/Poseidon in 1992 and continued with the launch of Jason-1 in December 2001. The authors used the measurements from these three missions to construct a seamless record of global mean sea level change from 1993 to the present. This dataset is the result of their calibration activities, including data comparisons during the ” tandem period” of the missions, during which they solve for biases between the missions, as well as comparisons to independent tide gauge sea level measurements. When the entire record is assembled, the average rate of sea level rise from 1993–2009 is 3.4 ± 0.4 mm/year. There is considerable interannual variation due to ENSO-related processes, which include the period of lower sea level rise over the last three years of the time series during the recent La Nina event. (Abstract from "Estimating Mean Sea Level Change from the TOPEX and Jason Altimeter Missions." Marine Geodesy 33, no. 1 supp 1 (2010): 435.). This dataset has been calibrated further to reflect the year 1900 as the baseline which allows for a seamless record of the older sea level datasets included in this graph.
Credits: Nerem, R. S., D. Chambers, C. Choe, and G. T. Mitchum.
Dr. Pieter Tans NOAA's Earth System Research Laboratory
Dr. James Hansen Columbia University
Dr. Geoff Dutton NOAA's Earth System Research Laboratory
Dr. Jeremy Shakun Boston College
Watch this educational video.
Measuring the Rising Seas
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Making climate data accessible and user-friendly like this global sea levels graph is a campaign of the 2° Institute (2 Degrees Institute). Its mission is to develop and support strategies that empower people to make the behavioural and lifestyle changes needed to keep our planet from warming by 2° Celsius above pre-industrial levels.