El Niño has been strengthening for several months now and is already having a significant impact on global weather patterns.
Countries including Indonesia, India and the United States have been experiencing droughts, floods and heatwaves in line with projections about how extreme weather events will be supercharged by the phenomenon.
The World Meteorological Agency says the record-breaking El Niño will strengthen further and persist until at least 2027.
BBC reporter William Lee Adams speaks with BBC weather presenter and meteorologist Sarah Keith-Lucas. She explains five ways its impact is already being felt around the world. Plus we hear from people experiencing the impact of extreme weather events in Singapore, India and Japan.
Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Emma-Louise Amanshia Producers: William Lee Adams and Benita Barden Editor: Emily Horler