Latest Southern Oscillation Index values
| Average for last 30 days | 0.8 |
|---|---|
| Average for last 90 days | 0.2 |
| Daily contribution to SOI calculation | -2.7 |
| February | 0.8 |
|---|---|
| March | 2.3 |
| April | -6.2 |
Note: Calculated using the 1887–1989 base period. This information is usually updated every weekday at 4:30pm (AEST), public holidays excluded.