El Niño/La Niña Update (February 2009) Publication 17 February 2009 Adobe Stock / Microgen Conditions resembling La Niña developed in December 2008, but they are already weakening and are not expected to herald a prolonged basin-wide La Niña event. Indeed, most assessments indicate that a transition back to neutral conditions is expected to occur over the next couple of months. One interpretation is that this has been a brief redevelopment of the La Niña event that prevailed through the latter part of 2007 and into the first half of 2008. View Report Share: Other editions Publication 01 April 2023 El Niño/La Niña Update (April 2023) Publication 01 November 2022 El Niño/La Niña Update (November 2022) Publication 01 August 2022 El Niño/La Niña Update (August 2022) View all editions