Latest status of El Niño and La Niña
El Niño and La Niña
Latest status (September 2025)
In the past month or so, sea surface temperatures of the central and eastern equatorial Pacific cooled gradually. Based on the latest oceanic observations as well as forecasts by a number of climate models around the world, the sea surface temperatures of the central and eastern equatorial Pacific are expected to continue cooling in the next couple of months, with a possibility of briefly transitioning to La Niña conditions during the rest of this autumn and the winter 2025/26.
Figure 1 Sea surface temperature anomalies of 24 August – 20 September in degree Celsius.
Note:
The next update will be available in the latter half of October 2025.
Related links:
What are El Niño, La Niña, ENSO?
The impact of El Niño and La Niña on the climate of Hong Kong
Seasonal and annual rainfall charts
Blogs relating to El Niño/La Niña
References on El Niño and La Niña
Seasonal forecast | Annual outlook | Climate change
For further information on this webpage, please contact Ms. M Y Chan (tel:2926 3102, email:mychan@hko.gov.hk)