What Exactly Is El Niño?
El Niño, Spanish for “The Little Boy,” is a naturally occurring climate phenomenon marked by the warming of sea surface temperatures in the central and eastern Pacific Ocean. This oceanic heat alters atmospheric patterns globally. For India, a strong
El Niño is often bad news. While not every El Niño year results in a drought, there is a strong correlation between this weather event and a weaker, more erratic southwest monsoon, which provides about 70-80% of India's annual rainfall. Forecasts for the 2026-27 event are particularly concerning, with some agencies warning of a potentially historic or "super" El Niño developing through the end of 2026. This heightens the risk of significant disruptions across the subcontinent.
A Threat to the Nation's Food Bowl
Agriculture is the first and most direct casualty of a weak monsoon. More than half of India’s farmland is rain-fed, making it highly vulnerable to shifts in rainfall. A deficient monsoon, as is feared, disrupts the sowing and growth of critical Kharif crops like rice, maize, pulses, and cotton. The Food and Agriculture Organization (FAO) has already identified India as one of the countries most exposed to agricultural drought from the current El Niño. September 2026 has already seen significant rainfall deficits in some areas. Lower crop yields not only threaten the livelihoods of millions of farmers but also risk stoking food inflation, which puts pressure on household budgets across the country. In response, authorities are reportedly encouraging farmers in hundreds of vulnerable districts to plant crops that require less water, such as millets.
The Growing Scramble for Water
The monsoon's primary role, beyond agriculture, is to replenish India’s water resources. A weak monsoon means less water flowing into rivers, dams, and reservoirs, and reduced recharge of groundwater tables. This is a critical concern for a country where over 600 million people already face high to extreme water stress. Even before the full impact of El Niño is felt, reservoir levels in parts of the country have shown alarming declines. This can lead to severe shortages of drinking water in both urban and rural areas, forcing rationing and increasing dependence on over-exploited groundwater. The strain on water resources affects everything from household access to the generation of hydropower, creating a cascading crisis that touches all aspects of life.
An Escalating Heat Crisis
El Niño’s impact isn’t limited to rainfall; it also brings the heat. The phenomenon is known to cause higher-than-average temperatures and more intense, prolonged heatwaves across India. This pattern has been observed in previous El Niño years and is a major public health concern. Extreme heat is especially dangerous for vulnerable populations, including outdoor labourers, the elderly, and those in homes without access to cooling. Agricultural workers are at a particularly high risk of heat-related illness and death. Furthermore, severe heatwaves drive up the demand for electricity as air conditioning use soars, which can strain the nation's power grids at critical times. Some scientists even suggest that the global temperature records set in recent years, driven by El Niño, could be broken again in 2027.
