El Niño is again, and it’ll be a giant one. The World Meteorological Group (WMO) mentioned on Thursday that the Pacific local weather sample has firmly set in, will strengthen right into a “very sturdy” occasion by the tip of 2026, and has a near-100% probability of lasting via February 2027. WMO mentioned its language on the occasion was probably the most emphatic within the 50-year historical past of its updates, and the local weather ripple results will run into 2027.
For India, the instant hit could also be modest, however hassle will seemingly comply with over a extra long term – not less than till subsequent spring.
Mahesh Palawat, vice-president at Skymet, mentioned the withdrawing monsoon will most likely escape the worst of it, however the months forward won’t. “It could possibly alter rainfall distribution and lift temperatures. Its instant affect on the withdrawing southwest monsoon could also be restricted, however it may affect the northeast monsoon and enhance the potential of a warmer-than-normal winter,” he informed HT.
“If El Niño persists into early 2027, India might face an enhanced danger of an unusually heat pre-monsoon season and heatwaves. Nevertheless, El Niño alone doesn’t decide India’s climate; the Indian Ocean Dipole, snow cowl, native sea temperatures and different atmospheric components may also form the eventual affect.”
Anjal Prakash, an IPCC creator and professor of public coverage at FLAME College, referred to as the WMO warning “a pink flag for India.” “With August already 16% rain-deficient and September forecast below-normal, the occasion threatens kharif yields, water safety and rural incomes, whereas pushing temperatures to file highs. For policymakers, that is additionally a macro-economic and food-security danger. We want instant drought-proofing in weak districts, versatile crop advisories, and pre-positioned reduction,” he informed HT, referring to rain knowledge for the simply concluded month.
The Indian file over the past six many years bears out each the warning and the caveat, in keeping with analyses accessed by HT. Each drought India has suffered within the final three and a half many years has are available in an El Niño 12 months, in keeping with a 2014 working paper by economists on the Indian Council for Analysis on Worldwide Financial Relations (ICRIER). However, the paper acknowledged, solely about 11 of 23 El Niño years because the Fifties have truly produced Indian droughts. Balaji Rajagopalan of the College of Colorado Boulder, whose 1999 paper within the journal Science stays an ordinary reference on the hyperlink, put it merely: Indian droughts “have all coincided with El Niño, however not all El Niños have produced droughts.”
The only greatest purpose for that hole is the IOD Palawat pointed to — and the final two very sturdy El Niños present it clearly.
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Why the strongest El Niño of the century didn’t dry India out
The 2 most up-to-date very sturdy occasions present how in a different way the identical sample can play out. In 1997, the usual Pacific temperature gauge — the Niño 3.4 index — peaked at about +2.3°C, the very best studying of the twentieth century, per NOAA. In 2015, it climbed increased, to about +2.6°C. And but the 1997 monsoon got here in close to regular. The 2015 monsoon collapsed to 86% of the long-term common — the worst deficit in six years. In Marathwada, Maharashtra, the numbers have been catastrophic: the area ended the season 40% quick, noticed simply 28 mm of rain in July towards a traditional close to 200 mm, and its kharif pulses crop was lower by greater than half, in keeping with a Present Science paper.
The 2015 injury was additionally compounded by 2014, itself a poor monsoon at 88% of the long-period common — the primary back-to-back poor years in many years, which means soils and reservoirs have been already stretched skinny when the second failure arrived.
What separated 2015 and 1997 the 2 years was the Indian Ocean Dipole (IOD) — the phenomenon Palawat flagged. Consider it as a see-saw of sea-surface temperatures throughout the Indian Ocean: heat within the west, cool within the east marks a “constructive” part, and that part channels extra moisture into India. In 1997, the constructive IOD was the strongest of the twentieth century, first documented in a 1999 Nature paper. In 2015, it was impartial to detrimental. Later work by specialists on the Indian Institute of Tropical Meteorology (IITM), Pune, confirmed a robust constructive IOD can dampen, and even completely cancel out, the El Niño sign over India.
WMO’s outlook for September–November 2026 does forecast a constructive IOD, with a seasonal common of +0.9°C. That’s India’s finest pure cushion towards a Pacific El Niño. However it is usually no assure.
The heatwaves could also be inevitable
A 2024 research within the journal World and Planetary Change discovered that heatwave days rise sharply over India throughout the ‘decaying part’ of sturdy El Niños — the 12 months after the occasion peaks. In 1998, the 12 months after the twentieth century’s strongest El Niño, the nation recorded what stays its deadliest heatwave. Dholpur in Rajasthan touched 49.5°C, the very best studying in 42 years on the time; the Nationwide Catastrophe Administration Authority later estimated 3,058 deaths, most in Odisha. In Could 2016, following the 2015 occasion, Phalodi in Rajasthan hit 51.0°C — the very best temperature ever recorded in India, breaking a mark set in Alwar in 1956.
In 2010, after a reasonable 2009 El Niño that had already delivered the third-worst monsoon since 1901, India logged its hottest 12 months on file to that time. The Ahmedabad heatwave that 12 months killed an estimated 1,274 folks and pushed India to attract up its first Warmth Motion Plan. In 2024, after the 2023 El Niño, Churu clocked 50.5°C, Odisha’s April warmth spell was its longest since 2016, and IMD declared the 12 months the warmest since 1901.
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Why do these heatwaves happen?
The paper discovered heatwave days rise sharply over south-central and northwest India particularly, pushed by a high-pressure system that stretches from the Western North Pacific to the Bay of Bengal, choking off cloud cowl and drying the decrease ambiance.
Earlier work by specialists at IIT Gandhinagar, revealed in Meteorological Purposes in 2016, confirmed El Niño weakens the moisture-carrying south-westerlies over the Arabian Sea, producing “persistent hotter days throughout the pre-monsoon” and pushing again the arrival of the monsoon. The Indian Ocean itself warms within the wake of a Pacific El Niño, however with a three-to-four month delay — and the next spring inherits that warmth.
The rabi downside, and why the 2027 wheat crop issues
For years, a great winter crop has bailed India out of a nasty monsoon. In 2009-10, the monsoon failed however winter rains held, and agricultural GDP nonetheless grew 1.9% — towards a 7% fall (roughly $8 billion) after the 2002 occasion. Foodgrain output hit a file 357.73 million tonnes in 2024-25, per the agriculture ministry.
That security web works solely when winter runs chilly and spring warms up slowly. India’s winters are getting hotter. A Local weather Tendencies evaluation discovered February in northern India is warming sooner than every other month — at about 0.69°C a decade — with March and April shut behind.
In 2021-22, when March and April ran 2–3°C above regular, wheat yields dropped by 2–3 quintals per acre, and India banned wheat exports in Could 2022. A 2008 estimate by agricultural scientist P.Ok. Aggarwal — that every 1°C of warming places 4–5 million tonnes of wheat in danger within the Indo-Gangetic Plains — nonetheless holds. A heat El Niño winter cuts quick the wheat plant’s grain-filling window and exposes the crop to punishing March–April warmth. That was the story in 2015-16, and once more in 2023-24.
Additionally learn: India braces for harsher summer, weaker monsoon as El Niño grips equatorial Pacific
Three components to look at for 2026-27
The IOD. If it strengthens into 2019 territory — when a file constructive IOD helped push the monsoon to 110% of regular regardless of a dry begin — the injury will likely be softened. If it fades because it did in 2015, the deficit may very well be brutal.
The winter. A February that runs greater than a level above regular throughout the wheat belt would put the 2027 rabi crop at actual danger of terminal warmth injury.
The decay-year spring. Each very sturdy El Niño since 1997 has been adopted by a record-breaking heatwave — Dholpur in 1998, Ahmedabad in 2010, Phalodi in 2016, Churu in 2024.
WMO Secretary-Basic Celeste Saulo mentioned on Thursday the occasion demanded “distinctive preparation and response.” For India, that reads as a to-do listing: warmth motion plans in cities, wheat contingency shares within the meals ministry, judgment calls on rice and onion export bans, and reservoir administration within the drier states. Most of it must be in place effectively earlier than June.
