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El Niño and La Niña
Latest status (August 2018)

In the past month or so, sea surface temperatures of the central and eastern equatorial Pacific continued to warm and were still within the normal range. Based on the latest oceanic observations as well as forecasts by a number of climate models around the world, the warming trend is expected to continue in the next few months. The development of El Niño is likely to start in autumn (September - November) 2018.

Sea surface temperature anomalies
(Source: National Oceanic and Atmospheric Administration, USA)

Figure 1    Sea surface temperature anomalies of 22 July – 18 August 2018 in degree Celsius.


1. The next update will be available in the latter half of September 2018.

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 forecastAnnual outlookClimate change

For further information on this webpage, please contact Mr. F C Sham (tel:2926 3102,