Long Paddock

Latest Southern Oscillation Index values

19 July 2016: Please note that our daily SOI data service is currently subject to intermittent disruption due to data supply problems. We are endeavouring to create a reliable system and anticipate it should be in operation by 1 August 2016.


SOI values for 30 Jul 2016
Average for last 30 days3.11
Average for last 90 days3.35
Daily contribution to SOI calculation9.91
Monthly average SOI values
April-19.07
May2.83
June3.72

Note: Calculated using the 1887–1989 base period. This information is usually updated every weekday at 4:30pm (AEST), public holidays excluded.

Southern Oscillation Index (SOI)