La Niña back for the 2021/2022 season

The climate monitoring services sounded the alert in early August: another low-intensity episode of La Niña is expected for the 2021/2022 autumn/winter season (with 70 % probability). This phenomenon would follow on from a medium-intensity episode in 2020/2021, marked by an intense cyclone season (Eta and Iota), as well as by cold climate conditions, delaying the progression of the banana supply from Colombia and Ecuador. La Niña is a recurrent climate phenomenon occurring every three or four years, and which contributes to oceanic and atmospheric cooling on the coasts of South America. Its climate impacts can be passed on worldwide. Generally, during La Niña, the months from December through February are cooler on the Peruvian and Ecuadorian coasts, the rains more abundant from the Brazilian North-East to Colombia, the temperatures higher in the Gulf of Mexico (hence the more active cyclone season), and sometimes even cooler temperatures in West Africa. Note that this phenomenon can occur twice in a row, as was the case in the episode of 2007/2008 and 2010/2012.

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