The marine heatwave bulletin provides forecasts and analysis of marine heatwave events across the globe and throughout the year. Used datasets include observations (satellite sea surface temperature maps) and numerical model analyses (assimilating satellite and in situ observations) to derive marine heatwave forecasts for a 10-day period. This week’s forecasts were produced using as a comparison the marine heatwave situation on 29/04/2025

Mean sea surface temperature anomalies in each global ocean region for the week 4 to 10 May , 2025.

North Atlantic Ocean	-3°C to 3°C
North Pacific Ocean	-3°C to 3°C
Tropical Pacific	-2°C à 2°C
South Pacific	-0.5°C to 3°C
Indian Ocean	-3°C to 3°C

Access the Daily Global Physical Bulletin for a 9-day forecast here.