"The cooling La Nina weather phenomenon may return between September and November, but even if it does, global temperatures are expected to be above average, the United Nations has said. La Nina is a naturally occurring climate phenomenon that cools surface temperatures in the central and eastern equatorial Pacific Ocean. It brings changes in winds, pressure and rainfall patterns. Conditions oscillate between La Nina and its opposite, El Nino, with neutral conditions in between."
"After a brief spell of weak La Nina conditions, neutral conditions have persisted since March, the UN's World Meteorological Organization (WMO) said. There is a 55% chance for sea surface temperatures in the equatorial Pacific to cool to La Nina levels between September and November, it said. For October to December 2025, the probability of La Nina conditions slightly increases to about 60%, the weather and climate agency added. There is little chance of El Nino developing during September to December."
La Niña cools surface waters in the central and eastern equatorial Pacific and alters winds, pressure and rainfall patterns. Neutral conditions have persisted since March after a brief spell of weak La Niña. There is a 55% chance of sea surface temperatures cooling to La Niña levels between September and November and about a 60% probability for October–December 2025. Little chance exists for El Niño to develop during September–December. La Niña often produces opposite impacts to El Niño, intensifying drought in some regions and heavy downpours in others. The 2020–2023 triple‑dip La Niña intensified drought and flooding, yet global temperatures have remained exceptionally high, with the past ten years the hottest on record.
Read at www.theguardian.com
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