Indian Ocean Dipole (IOD)

Issued 6 August 2024

The Indian Ocean Dipole (IOD) is currently neutral.

• The latest weekly value of the Indian Ocean Dipole (IOD) index to 4 August 2024 was -0.15°C.
• Three of the five international climate models surveyed by the Bureau of Meteorology suggest a negative IOD from September.
• Predictability of the IOD is low at this time of year for forecasts beyond 2 months, with the model forecasts showing a large spread of possible outcomes.

The Indian Ocean Dipole (IOD) is the difference in sea surface temperatures between the eastern and western tropical Indian Ocean.