![\"People](\"https:\/\/www.newsbeep.com\/ie\/wp-content\/uploads\/2026\/10\/0025368c-614.jpg\"\/)
\nPeople gather along the La Jolla coastline in San Diego after a heat advisory for the coastal region was issued in recent days<\/p>\n
The world is facing the prospect of an unprecedented El Ni\u00f1o event over the coming months, with the United Nations warning of widespread disruption to global weather patterns, increased drought and flooding, and potentially escalating humanitarian emergencies.<\/p>\n
The World Meteorological Organization (WMO) says sea surface temperatures in a key monitoring region of the tropical Pacific could rise to an extraordinary 3.8\u00b0C above average during November, December and January.<\/p>\n
The organisation’s Secretary General Celeste Saulo described the developing event as potentially the strongest ever recorded.<\/p>\n
“This is literally off the monitoring charts that we have used for the past four decades. El Ni\u00f1o will peak towards the end of 2026, but its impacts will be felt long after that,” she said.<\/p>\n
The forecast is particularly significant because the WMO’s threshold for identifying El Ni\u00f1o conditions is a sea surface temperature anomaly of just 0.5\u00b0C in the tropical Pacific.<\/p>\n
The projected 3.8\u00b0C anomaly refers specifically to ocean temperatures in the El Ni\u00f1o monitoring region, rather than an increase in average global sea temperatures.<\/p>\n
El Ni\u00f1o is a naturally occurring climate phenomenon involving unusually warm ocean waters in the central and eastern tropical Pacific.<\/p>\n
It can disrupt atmospheric circulation and rainfall patterns across large parts of the world, bringing severe drought to some regions and unusually heavy rainfall and flooding to others.<\/p>\n
It can also contribute to higher global temperatures, temporarily amplifying the underlying warming of the planet caused by greenhouse gas emissions.<\/p>\n
\nPeople gather along the La Jolla coastline in San Diego after a heat advisory for the coastal region was issued in recent days<\/p>\n
The latest forecast therefore raises concerns about the potential for exceptionally high global temperatures during 2027, as the influence of a powerful El Ni\u00f1o can continue for months after the event itself reaches its peak.<\/p>\n
While El Ni\u00f1o can have profound consequences for weather patterns internationally, its direct influence on Ireland is considerably less predictable.<\/p>\n
Irish winter weather is influenced primarily by atmospheric circulation over the North Atlantic, including the position of the jet stream and the North Atlantic Oscillation.<\/p>\n
Consequently, even an exceptionally powerful El Ni\u00f1o does not necessarily mean Ireland will experience an unusually mild, wet or stormy winter.<\/p>\n
However, a separate seasonal outlook issued by Met \u00c9ireann yesterday points towards a relatively mild and wetter-than-average start to winter.<\/p>\n
Its forecast for November through January indicates that average temperatures across Ireland could be between 0.5\u00b0C and 1\u00b0C above normal.<\/p>\n
Rainfall is also expected to be above average overall, with the strongest signal for wetter conditions during November and December, particularly in southern parts of the country.<\/p>\n
Sea temperatures around Ireland are also forecast to remain between 0.2\u00b0C and 1\u00b0C above normal.<\/p>\n