Key takeaways

• Mediterranean Sea – marine heatwave in the eastern basin is increasing in extent.
• Tropical Atlantic – The gulf of Mexico and the Caribbean Sea experience a decrease in marine heatwave intensity and extent. Overall decrease in marine heatwave extent off the west coast of Africa.
• Tropical Pacific – Off the Australian coasts conditions persist but are now decreasing in intensity while the region north of New Zealand the marine heatwave is increasing in intensity.

Tropical Atlantic 

The extent and intensity of the marine heatwave in the Gulf of Mexico and the Caribbean Sea are decreasing. Only a few scattered areas remain under the moderate category. The marine heatwave around 30°W is decreasing in extent, falling into the moderate category, and locally into the strong category. The marine heatwave off the west coast of Africa near 8°N is decreasing in both intensity and extent, with the persistence of the moderate and strong categories.

Mediterranean Sea	0°C to 1.5°C
Tropical Atlantic	-0.5°C to 1.5°C
North Pacific	– 2°C to > 3°C
Tropical Pacific	< -3°C to 3°C
Indian Ocean	-2°C to 2°C