Please note: Due to storm impacts on systems at NOAA's National Centers for Environmental Information in Asheville, NC, certain data services may be temporarily unavailable or experiencing issues. We apologize for any inconvenience.
Graph-Dashboard: Oceanic Niño Index (ONI)
Seasonal (3-month) sea surface temperatures in the central tropical Pacific Ocean compared to the 1981-2010 average. Warming or cooling of at least 0.5˚Celsius above or below average near the International Dateline is one of the criteria used to monitor the El Niño-La Niña climate pattern. NOAA Climate.gov image, based on data from the Climate Prediction Center.