El Nino Vs La Nina 2024 Uk. El niño and la niña episodes typically occur every two to seven years, and usually last nine to 12 months. But they don't necessarily always go one after the other:

How often does el niño/la niña occur? Noaa projects an 85 percent chance that the enso cycle will shift to its neutral phase between april and june 2024, and then a 60 percent chance a la niña will develop.