Ocean Temperature Bulletin – February 2025

A monthly reporting on mean sea surface temperatures and marine heatwave conditions. Key takeaways February 2025 was the 2nd warmest February on record for the global ocean, with a mean temperature of 20.95 ± 0.08 °C. The past month was the warmest February on record for the Mediterranean Sea (16.41 ± 0.12 °C). In the […]
Ocean Temperature Bulletin – January 2025
Key takeaways January 2025 was the 2nd warmest January on record for the global ocean, with a mean temperature of 20.86°C. 38.6% was the maximum surface of the ocean surrounding Europe affected by a marine heatwave event. In the North Atlantic, January 2025 was the 2nd most extreme January month in terms of marine heatwave […]
Ocean Temperature Bulletin – December 2024
Key takeaways December 2024 was the second warmest December on record since 1991, with a mean sea surface temperature of 20.67°C. A record monthly mean sea surface temperature was reached in the North Atlantic Ocean – 22.11°C. The North Atlantic Ocean had the 2nd most extreme December for marine heatwave conditions. Sea Surface Temperature Daily […]
Ocean Temperature Bulletin – November 2024
Sea Surface Temperature Daily sea surface temperatures averaged for the global ocean (top), the Mediterranean Sea (bottom left) and the North Atlantic Ocean (bottom right) between 1991-2020 using ESA’s Climate Change Initiative (green shades), and between 2021-2024 (red shades) + forecast (black) using Mercator Ocean International’s GLO12 analysis for November. November 2024 was the 2nd […]
Ocean Temperature Bulletin – October 2024
Sea Surface Temperature Daily sea surface temperatures averaged for thet global ocean (top), the Mediterranean Sea (bottom left) and the North Atlantic Ocean (bottom right) between 1991-2020 using ESA Climate Change Initiative (green shades), and between 2021-2024 (red shades) + forecast (black) using MOi GLO12 analysis. October 2024 was the 2nd warmest on records (after […]
Ocean Temperature Bulletin – September 2024
A warm September Sea surface temperature averaged for the North Atlantic Ocean (left), the Mediterranean Sea (center) and the global ocean between 1991-2020 using ESA Climate Change Initiative (green shades), and between 2021-2024 (red shades) + forecast (black) using MOi GLO12 analysis. September 2024 was a warm month overall with regional records. At global level, […]
Ocean Temperature Bulletin – August 2024
Mercator Ocean International (MOi) publishes a monthly bulletin presenting the marine heatwave conditions for the month just passed. It includes: for regions of the Ocean in marine heatwaves situation the time this event started, the timeseries showing the total surface occupied by marine heatwaves globally and for the European region, and the total number of […]
Ocean Temperature Bulletin – July 2024
Mercator Ocean International (MOi) publishes a monthly bulletin presenting the marine heatwave conditions for the month just passed. It includes: for regions of the Ocean in marine heatwaves situation the time this event started, the timeseries showing the total surface occupied by marine heatwaves globally and for the European region, and the total number of […]