Latest Southern Oscillation Index values
| Average for last 30 days | 5.2 |
|---|---|
| Average for last 90 days | 6.2 |
| Daily contribution to SOI calculation | -3.8 |
| February | -5.6 |
|---|---|
| March | 8.7 |
| April | 1.3 |
Note: Calculated using the 1887–1989 base period. This information is usually updated every weekday at 4:30pm (AEST), public holidays excluded.