Winter 2025 Forecast Accuracy. A weak la niña is expected to develop, instead of last winter's el niño. A month of two halves with the first half being unsettled with fairly frequent rain bands and thunderstorms, but then turning much drier with high pressure.
The forecast average is within the la niña threshold but shows a weak to moderate event. A month of two halves with the first half being unsettled with fairly frequent rain bands and thunderstorms, but then turning much drier with high pressure.