Scientists Warn El Nino Could Intensify UK Winter Weather

Record-breaking ocean temperatures in the Pacific have raised concerns about more extreme winter weather in London and elsewhere in the United Kingdom, while separate forecasts point to possible October snowfall in Scotland. Scientists expect the powerful El Niño event to peak in December 2026 and continue through February 2027, although meteorologists caution that its precise effects on Britain remain uncertain. The Japan Meteorological Agency reported on Friday, October 9, that Pacific sea surface temperatures had reached 4C above normal, the highest reading since records began.

The event, described as a "Godzilla" El Niño, is developing alongside global warming, raising concerns about its potential effects on weather patterns worldwide. Tim Stockdale, principal scientist at the European Centre for Medium-Range Weather Forecasts (ECMWF), told The Standard that Britain's variable climate makes the regional consequences difficult to predict. However, he identified an increased possibility of extreme weather during the coming months.

Stockdale expects the opening part of winter to bring milder, wetter and windier conditions. He said the additional rainfall could help replenish water supplies in southern England following drought conditions, while stronger winds could support electricity generation from wind power.

He described the outlook for the later winter as less certain, noting that major El Niño events can sometimes coincide with colder conditions. The balance between warmer and colder weather remains difficult to establish at this stage. Stockdale said forecasting models had indicated the development of a major El Niño as early as March and April 2026. By June, those models were projecting a record-strength event, and subsequent observations confirmed that the phenomenon had developed.

He said the Pacific's central waters had become warmer than previously recorded by a substantial margin. The scientist also warned that the event was unfolding against a background of global warming, creating an unprecedented combination of pressures on the climate system. Stockdale said scientists and meteorologists were deeply concerned about the potential consequences for global weather patterns. He also highlighted the uncertainty facing aid agencies, which cannot reliably determine where the most serious weather-related disasters might occur.

The potential effects extend beyond weather. The UK Government has warned that food prices, including those of rice and coffee, could rise if agricultural harvests suffer significant damage. Energy bills could also increase, although the scale of any impact remains uncertain.

Historical experience offers some context. The previous major El Niño during the 2015-2016 winter and following spring coincided with damaging storms and freezing conditions in London. Storm Desmond was associated with severe weather across the UK, while Storm Katie struck the capital around Easter 2016, damaging roofs and bending a construction crane in Greenwich.

Meanwhile, a separate forecast published by the Daily Star on October 8 suggested that snowfall could affect parts of Scotland around October 16. The Global Forecast System (GFS) model, presented through WX Charts using Met Desk data, indicated possible accumulations of up to 4cm, with 2cm more typical and heavier deposits on higher ground.

The areas listed as potentially affected included Sutherland, Ross-shire, Cromartyshire, Inverness-shire, Nairnshire, Banffshire, Aberdeenshire, Angus, Perthshire, Argyllshire, Dunbarton and Stirlingshire. The forecast placed the greatest likelihood of snowfall in Scotland, particularly over elevated terrain.

The Met Office disputed suggestions that the country was facing an exceptional cold spell, describing the projected conditions as a recognizable autumn pattern. It said widespread, dramatic snowfall and prolonged freezing temperatures were not the central features of the current outlook. BBC Weather also forecast unsettled conditions during the week beginning October 12, followed by the possibility of higher pressure bringing drier weather to southern Britain.

Temperatures were expected to remain near or above average for much of the period, although clear and calm intervals could produce chilly nights and fog. The outlook for October 19 through November 1 indicated the possibility of drier-than-normal conditions across many areas. Forecasters nevertheless expected changeable autumn weather, with rain, brisk winds, showers and cooler intervals alternating with periods of drier conditions.