For the week ending 18 June, sea surface temperatures (SSTs) were slightly warmer than average across most of the equatorial Pacific Ocean. Generally weak warm anomalies are also present across much of the South Pacific, including areas immediately south of the equator.

The NINO3.4 SST anomaly has remained at around +0.5 °C since mid-April, while NINO3 dropped further to +0.3 °C in the last fornight. In contrast NINO4 warmed 0.1 °C to +0.5 °C.