The World Meteorological Organization (WMO) has warned that the current El Niño event could reach exceptional strength toward the end of 2026, potentially exceeding the range captured by four decades of monitoring. In a statement issued on October 21, WMO Secretary-General Celeste Saulo said tropical Pacific sea surface temperatures could rise as much as 3.8°C above average during the November 2026 to January 2027 period. The outlook has prompted concern about the potential for major weather disruptions affecting agriculture, water supplies, public safety and humanitarian operations across different parts of the world.
El Niño is a recurring climate phenomenon associated with unusually warm conditions in parts of the tropical Pacific Ocean. It can influence rainfall, temperature and atmospheric circulation patterns far beyond the ocean region where the warming occurs. However, the strength of an El Niño event does not mean that every location will experience the same type of weather or that a specific flood or drought can be predicted solely from the global outlook.
The WMO is encouraging governments and humanitarian agencies to strengthen preparedness before the event reaches its expected peak. The warning concerns a forecast rather than a completed temperature measurement, making the difference between potential and observed conditions particularly important.
What has the WMO forecast for the 2026 El Niño?
The WMO’s latest seasonal climate outlook indicates that sea surface temperatures in the tropical Pacific may reach approximately 3.8°C above average from November 2026 through January 2027. Such an anomaly would represent unusually intense warming within the affected ocean region.
Saulo warned that the event could exceed the monitoring range used over the past four decades. This characterisation reflects the exceptional conditions projected by the organisation’s forecasting system.
Nevertheless, a forecast maximum is not the same as an observed record. The eventual strength will need to be assessed using measured temperatures and established scientific indicators.
The statement also indicates that El Niño is expected to peak toward the end of 2026. Weather and climate effects may continue into 2027 because atmospheric and oceanic systems respond over time.
Why do tropical Pacific temperatures affect weather around the world?
The tropical Pacific is an important component of the global climate system. Changes in ocean temperatures can influence atmospheric circulation and alter the distribution of rainfall and heat.
During El Niño, some regions may experience increased rainfall while others face a greater likelihood of dry conditions. These effects are not uniform and can vary substantially with geography and season.
The relationship between ocean warming and local weather also depends on other atmospheric factors. A strong El Niño can raise the probability of particular conditions without making each individual event inevitable.
That uncertainty is important for public communication. Governments should use regional forecasts and updated warnings rather than assume that a global El Niño designation automatically predicts the timing or location of every hazard.
Could the event increase flooding and drought risks?
Strong El Niño conditions can contribute to major variations in rainfall across different regions. In areas where rainfall becomes more intense, flooding and landslides may pose additional risks to communities and infrastructure.
Other locations may experience reduced rainfall, placing pressure on water resources, crops and hydropower generation. The effects can be particularly serious where communities already face drought or limited access to irrigation.
The potential humanitarian consequences depend on local vulnerability as well as meteorological conditions. A region with effective early warnings and resilient infrastructure may be better prepared than an area with limited emergency resources.
The WMO’s warning therefore calls for targeted preparedness rather than a universal expectation that all countries will face the same disaster.
Why is the October forecast important for agricultural production?
Agriculture depends heavily on seasonal rainfall, temperature and the availability of water. Significant changes in these conditions can affect planting decisions, crop development and the productivity of farmland.
Farmers may face increased uncertainty if rainfall arrives later than expected or intense storms damage crops. In some regions, changed weather patterns could also improve growing conditions, demonstrating that the effects of El Niño are not exclusively negative.
The eventual impact on food prices will depend on which commodities and producing regions are affected. Supply changes, international trade and existing inventories all influence how weather problems translate into market prices.
It would therefore be premature to assign a specific global food-price increase to the current forecast. The commercial significance will become clearer as regional production conditions develop.
What does the WMO warning mean for India and other Asian countries?
Asian countries may experience different rainfall and temperature responses depending on their geographical position and season. El Niño has historically been associated with changes in monsoon behaviour, but the strength of that relationship varies between events.
India’s agricultural outlook depends on regional rainfall distribution, irrigation and the timing of major growing seasons. A global forecast provides relevant context, but specific agricultural decisions require information from Indian meteorological and agricultural authorities.
Southeast Asian countries may also face rainfall anomalies affecting crops, water availability and energy generation. The direction and severity of those effects will differ by location.
The WMO’s latest assessment should therefore be combined with national and regional forecasting rather than used as a substitute for local advisories.
How are humanitarian agencies preparing for an extreme El Niño?
The WMO released its outlook alongside humanitarian officials, emphasising the importance of using climate information before emergencies develop. Advance warnings can help organisations identify communities facing elevated weather-related risks.
Preparedness may involve monitoring water resources, improving early-warning systems, reviewing emergency supplies and planning support for vulnerable populations. Such measures can reduce the consequences of extreme conditions even when exact events cannot be predicted months ahead.
The ability to act early is particularly important in areas already experiencing conflict, food insecurity or weak infrastructure. Additional weather pressure may worsen existing humanitarian difficulties.
The organisation’s warning is therefore both a scientific forecast and an appeal for practical preparedness. Its purpose is to inform decisions before the expected peak rather than merely describe unusual ocean temperatures.
What are the key takeaways from the WMO’s El Niño warning?
The World Meteorological Organization warned on October 21 that the current El Niño could reach exceptional strength, with tropical Pacific sea surface temperatures potentially rising 3.8°C above average during November through January.
The event is forecast to peak toward the end of 2026, although its effects may persist into 2027. The global outlook raises concerns about floods, droughts and agricultural disruption, but the precise local consequences require regional forecasting.
What should governments and businesses watch next?
The most important indicators will be updated ocean-temperature observations, regional seasonal forecasts and the development of rainfall and temperature anomalies. These will help determine whether the projected intensity materialises and where preparedness needs are greatest.
The WMO’s warning provides a strong reason to plan for potential weather disruptions, but it is not evidence that every forecast disaster will occur. Its value lies in enabling earlier, more informed responses to a potentially exceptional climate event.
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