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El Niño and La Niña
Latest status (December 2017)


In the past few months, sea surface temperatures of the central and eastern equatorial Pacific continued to cool. Based on the latest oceanic observations as well as forecasts by a number of climate models around the world, sea surface temperatures of the central and eastern equatorial Pacific are expected to remain below normal during winter 2017/18 (December 2017 – February 2018). The situation is likely to develop into a weak La Niña event.


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

Figure 1    Sea surface temperature anomalies of 19 November – 16 December 2017 in degree Celsius.


Note:

1. The next update will be available in the latter half of January 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, email:fcsham@hko.gov.hk)