May 30, 2025 — The Gulf of Maine will again experience colder than normal bottom-water temperatures, according to a new forecast from the National Oceanic and Atmospheric Administration.
NOAA projects deep water temperatures in the Gulf of Maine will be cooler by 0.9 to 1.8 degrees Fahrenheit this summer, compared to the seasonal average. The outlook is based on new models developed by NOAA researchers that provide large-scale predictions of the ocean and regional ecosystem changes.