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NOAA Daily Optimum Interpolation Sea Surface Temperature

Published by National Oceanic and Atmospheric Administration, Department of Commerce | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 03:41 AM | Dataset Last Updated: May 30, 2023 at 12:00 AM
The NOAA 1/4° daily Optimum Interpolation Sea Surface Temperature (or daily OISST) is an analysis constructed by combining observations from different platforms (satellites, ships, buoys) on a regular global grid. A spatially complete SST map is produced by interpolating to fill in gaps. Data starts in 1981 and is updated to near present.

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