NASA confirms a weak La Niña in 2025: What it means for global weather, sea levels, and winter forecasts

La Niña returns to the Pacific after a brief neutral phase. This event, expected from September to December 2025, is considered weak. Its influence on global weather and climate patterns is being closely monitored. Changes in sea level, rainfall, and temperature are anticipated across continents. Researchers are tracking ocean temperatures and atmospheric circulation for disaster preparedness and climate outlooks.