Latest Southern Oscillation Index values
Please note: the daily SOI value published on 23 December 2016 was incorrect due to a data processing error. The corrected value was published on 3 January 2017. If you accessed our SOI data or SOI phase information between those dates we recommend you download a new copy to ensure you have the corrected information. We apologise for any inconvenience caused.
|Average for last 30 days||-2.00|
|Average for last 90 days||-0.42|
|Daily contribution to SOI calculation||5.67|
Note: Calculated using the 1887–1989 base period. This information is updated daily. The new data are typically available by 7:00pm (AEST).