The United Nations has issued a warning about the imminent return of El Niño, which is expected to significantly raise temperatures worldwide in the upcoming weeks. El Niño, a potent natural weather phenomenon known for elevating global temperatures and reducing rainfall, has an 80% probability of occurring before September, with a 90% likelihood of persisting until November, according to The World Meteorological Organization.

Several national weather agencies have predicted that the upcoming El Niño event could potentially be one of the most intense ever recorded, possibly leading to a “super” El Niño that surpasses previous occurrences. While the impact of El Niño in the UK is typically milder compared to other regions, it can still result in more extreme weather conditions, with colder winter temperatures towards the end of the season and hotter summer temperatures. The current heatwave could be just the beginning of these effects.

Professor Bill McGuire, a renowned expert in geophysical and climate hazards from University College London, anticipates that El Niño could influence summer temperatures, potentially causing significant heatwaves either this year or more likely the following year as global temperatures rise. Temperatures exceeding 40 degrees Celsius would not be unexpected.

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