La Nina 2025 To 2025 Forecast. Is already seeing extreme weather across the country, from the wildfires raging in southern california to the uncharacteristically heavy snow. The forecasts for 2025 indicate a slight decrease in global average temperatures compared to 2024, thanks to the influence of the climatic phenomenon la niña.
These changes disrupt global weather. La niña begins when pacific trade winds strengthen, pushing warm surface waters westward and allowing cooler water to rise in the eastern pacific.