Are We In A El Nino Or La Nina Year 2025. The noaa climate prediction center announced an end to the el niño climate phenomenon on thursday, and predicted that la niña could start as early as next month. La niña is the cool phase of the pacific ocean's temperature cycle that affects rainfall, heat waves, and drought patterns around the world.

Learn how enso affects global patterns and why la. El niño tends to create hostile upper level winds that rip storms apart while la niña does the opposite.