June 2026 Sea Surface Temperature Analysis
In June 2026, the sea surface temperature (SST) anomaly pattern notable warming across most Niño regions in the tropical equatorial Pacific, with most prominent warming in the eastern Pacific.
Warm to slightly warm SST anomalies were present in the Philippine Sea, as well as in both the monitored northern and southern regions of the Tripole Pacific Index (TPI).
Meanwhile, considerable parts of the central North Pacific were considerably warmer, indicative of a negative PDO.
In the Indian Ocean, warmer SST anomalies in the eastern Indian Ocean (i.e., EIO) while a mix of slightly cooler to near average SST anomalies in the western Indian Ocean (i.e., WIO) suggest a neutral Indian Ocean Dipole (i.e., IOD). Overall, the basin exhibited a weakly positive Indian Ocean Basin-Wide (IOBW) signal.
Lastly, the tropical North Atlantic (i.e., TNA) indicates average to slightly cooler SST anomalies.
The maps on the right (top to bottom) indicate the observed SST for June 2026 and the climatological normal from 1991 to 2020, providing context for the SST anomaly maps.
