2026 could see a super El Nino and record-breaking global temperatures

Climate scientists and major forecasting agencies are warning that a "super" El Niño event could develop by mid-to-late 2026, with the potential to drive glo...

What Happened

Climate scientists and major forecasting agencies are warning that a "super" El Niño event could develop by mid-to-late 2026, with the potential to drive global temperatures to record-breaking levels.
The World Meteorological Organisation (WMO) has indicated an increasing likelihood of El Niño developing between May and July 2026 (61% probability), with models projecting a median warming of ~2.2°C in the Niño 3.4 region by September 2026 — placing the event firmly in "super" El Niño territory.
ENSO-neutral conditions currently prevail (April 2026), with an 80% probability of continuing through April–June 2026 before transitioning.
Climate projections suggest 2026 is likely to be the second-warmest year on record (five research groups' consensus); there is a 19% chance it surpasses 2024 as the all-time warmest year. A strong El Niño event later in 2026 would substantially elevate the probability that 2027 becomes the warmest year on record.
For India, the forecast has direct implications for the Southwest Monsoon (June–September) — the backbone of Indian agriculture — as El Niño events are historically associated with below-normal rainfall.
A forecast of below-normal monsoon for India in 2026 has already been issued by Skymet Weather Services.

Static Topic Bridges

El Niño–Southern Oscillation (ENSO) — Mechanism and Classification

ENSO is a coupled ocean-atmosphere climate phenomenon centred in the tropical Pacific Ocean. It alternates between El Niño (warm phase), La Niña (cool phase), and ENSO-neutral conditions.

El Niño: Anomalous warming of sea surface temperatures (SST) in the central and eastern tropical Pacific; monitored primarily via the Niño 3.4 region (5°N–5°S, 170°W–120°W)
El Niño threshold: SST anomaly of ≥+0.5°C in the Niño 3.4 region, sustained for 5 consecutive overlapping 3-month seasons
Super El Niño classification: SST anomaly ≥+2.0°C in the Niño 3.4 region; historically observed in 1972-73, 1982-83, 1997-98, and 2015-16
Southern Oscillation: The atmospheric component of ENSO — measured by the Southern Oscillation Index (SOI), the pressure difference between Tahiti and Darwin (Australia)
Walker Circulation: The east-west atmospheric circulation over the equatorial Pacific; weakens during El Niño, strengthening subsidence over South Asia

Connection to this news: A 2.2°C anomaly in the Niño 3.4 region would qualify as a super El Niño. The 1997-98 event (SST anomaly ~2.4°C) is the benchmark for comparison; that year saw severe monsoon disruption globally and in India.

Indian Ocean Dipole (IOD) — Interaction with ENSO and India's Monsoon

The IOD (also called the Indian Ocean Zonal Mode) is an irregular oscillation of SSTs in the Indian Ocean, interacting with ENSO to amplify or moderate monsoon impacts.

Positive IOD: Western Indian Ocean warmer than eastern Indian Ocean; generally associated with above-normal monsoon rainfall in India — it can partially offset El Niño-induced monsoon deficits
Negative IOD: Eastern Indian Ocean warmer; tends to reinforce El Niño-driven monsoon suppression
Mechanism: El Niño often triggers a positive IOD through anomalous surface winds near Indonesia, but this is not always the case
When El Niño coincides with a negative IOD, the combined suppression of Indian monsoon rainfall is significantly amplified

Connection to this news: Whether a super El Niño in 2026 severely impacts Indian monsoon depends critically on the simultaneous IOD state. A positive IOD developing alongside El Niño could moderate the deficit; a negative IOD would compound it. Indian meteorological agencies (IMD, IITM Pune) track IOD forecasts alongside ENSO.

El Niño's Historical Impact on India's Monsoon and Agriculture

India receives ~75% of its annual rainfall during the Southwest Monsoon (June–September). El Niño events can weaken the monsoon by disrupting the Walker Circulation and strengthening subsidence over the Indian subcontinent.

Of 13 significant droughts in India since 1950, 10 occurred in El Niño years
Total food grain production contracted in 12 out of 15 El Niño years studied
Agricultural output contraction was observed in 11 out of 15 El Niño years
Severe droughts were recorded in El Niño years: 2002, 2009, 2014, 2015
El Niño years are associated with: below-normal kharif sowing (particularly rice, pulses, oilseeds), higher food inflation, increased irrigation demand, and river-flow deficits in peninsular India
The 1997-98 super El Niño, while it caused severe global disruption, was partially moderated in India by a concurrent positive IOD — illustrating that the IOD offset mechanism can operate

Connection to this news: A super El Niño developing in mid-2026 would peak precisely during India's critical monsoon months. Combined with the already-issued Skymet below-normal monsoon forecast, this raises the alert level for kharif 2026 crop production, food security planning, and reservoir storage for the following rabi season.

Global Temperature Records — ENSO and Anthropogenic Forcing Interaction

Earth's surface temperature has been rising due to anthropogenic greenhouse gas emissions. ENSO events modulate year-to-year temperature variability superimposed on this warming trend.

2024 is currently the warmest year on record globally (all major datasets)
El Niño events warm global average temperatures by ~0.1–0.2°C in their peak year, with the full temperature effect often felt in the calendar year following peak SST anomaly
The 2015-16 super El Niño contributed to 2016 being (then) the warmest year on record
2027 is flagged as a potential record-breaker because El Niño SST peak translates to atmospheric temperature peak ~6–12 months later
The combination of background anthropogenic warming + super El Niño SST boost = elevated risk of exceeding all prior global temperature records

Connection to this news: The "super El Niño + record temperatures" nexus is directly relevant to India's climate commitments under the Paris Agreement (NDC target: reduce emissions intensity by 45% of 2005 levels by 2030; achieve 500 GW renewable capacity by 2030). Extreme heat events and erratic monsoon seasons driven by ENSO amplification stress both agricultural systems and India's climate adaptation framework.

La Niña — The Preceding Phase

The current transition from La Niña to ENSO-neutral to El Niño follows a typical ENSO oscillation cycle.

La Niña: Below-normal SSTs in the Niño 3.4 region (anomaly ≤ −0.5°C for 5+ consecutive seasons)
La Niña typically brings above-normal monsoon rainfall to India and above-normal kharif production
The rapid transition from La Niña → El Niño within the same year is meteorologically significant; it compresses the "recovery window" for reservoirs and groundwater
ENSO oscillation cycle: typically 2–7 years between events

Connection to this news: The recent La Niña phase likely supported relatively better monsoon performance immediately prior to 2026. The transition to a potential super El Niño in 2026 thus represents a sharp reversal that India's agricultural planning systems — which often use the prior season's performance as a baseline — must proactively account for.

Key Facts & Data

El Niño onset probability (May–July 2026): 61% (WMO forecast, April 2026)
Niño 3.4 region: 5°N–5°S, 170°W–120°W — the primary ENSO monitoring zone
Super El Niño SST threshold: ≥+2.0°C anomaly in Niño 3.4 region
Projected Niño 3.4 anomaly by September 2026: ~2.2°C (central/median estimate)
Historical super El Niño years: 1972-73, 1982-83, 1997-98, 2015-16
India drought correlation: 10 of 13 major post-1950 droughts occurred in El Niño years
Food grain contraction: Agricultural output fell in 11 of 15 El Niño years
Recent El Niño droughts in India: 2002, 2009, 2014, 2015
2026 global temperature rank forecast: Likely second-warmest on record; 19% chance of warmest
India's 2026 monsoon forecast (Skymet): Below normal
India's Paris Agreement NDC: 45% emissions intensity reduction from 2005 levels by 2030; 500 GW renewable capacity by 2030