Global Oceans Record 100 Days of Heat, El Niño Amplifies Warming

Global ocean surface temperatures, outside of polar regions, sustained record highs for 100 days between June 2 and September 10. Data from the Climate Reanalyzer, overseen by the University of Maine’s Climate Change Institute, indicated that each of these days surpassed sea surface temperatures recorded on the same date in every prior year since 1982.

Peak temperatures were observed in late August, with the European Union’s Copernicus Climate Change Service reporting 21.10° Celsius (69.98° Fahrenheit) on August 22. The Climate Reanalyzer noted even higher averages between August 22 and 27, reaching 21.18° C (70.12° F), according to data from the U.S. National Oceanic and Atmospheric Administration (NOAA). Scientists suggest these elevated temperatures are likely to persist in the short term due to an intensifying El Niño, and are part of a long-term trend driven by climate change.