Summer Weather Forecast 2025. An increasingly likely la niña is part of. The summer 2025 forecast update shows a dynamic summer pattern in the atmosphere, impacted by the transition from the warm el niño to a cold la niña cycle.
Most of it has to do with the el niño now starting to disappear, with a new la. The forecast for a scorching summer is largely due to ongoing high ocean temperatures surrounding australia, a persistent feature that has plagued most of the globe since early last year.