
Image caption
Sea surface temperatures around the world in May 2023 compared to the long-term average. Most of the global ocean was warmer than average, leading to a new record-warm global ocean temperature for the month of May. Intense warmth along the equator in the eastern pacific was a sign of the arrival of El Niño. Map by NOAA Climate.gov, based on data provided by Coral Reef Watch and processed by NOAA Environmental Visualization Lab.