The first six months of 2026 were characterized by persistently elevated sea-surface temperatures and widespread marine heatwaves across much of the global ocean, according to the latest Copernicus Marine mid-year bulletin.
Covering January through June 2026, the assessment examines sea-surface temperature (SST) and marine heatwave conditions across the global ocean between 60°S and 60°N, with particular focus on the Mediterranean Sea, the North Atlantic and the tropical Pacific. The analysis draws on Copernicus Marine’s GLO12 global ocean monitoring systems, combining observations, modelling and reanalysis to provide a comprehensive picture of evolving ocean conditions…
Summary:
- Global Ocean (60° S – 60°N)
- Mediterranean Sea
- North Atlantic (0° – 60°N)
- Tropical Pacific (30°S – 30°N)
Source: The Copernicus Marine Service – European Union’s Earth Observation Programme
