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2017

2017 Reports
State Seasonal Update Archive August 2024 Climate outlook and drivers Global climate drivers Southern Oscillation Index
August 2024

Southern Oscillation Index (SOI)

  • The 30-day Southern Oscillation Index (SOI) for the 30 days to 1 September 2024 was +8.3. The 90-day SOI value was -0.6.
  • Sustained negative values of the SOI below −7 typically indicate El Niño while sustained positive values above +7 typically indicate La Niña.
Latest 30-day moving SOI
Sourced from the Australian Bureau of Meteorology
Image for Southern Oscillation Index
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