El Nino Forecast 2026: Will Monsoon in India Be Affected Amid 80% Probability of Return Between June & August?

A fresh El Nino event may be developing in the Pacific Ocean this year, raising concerns about its potential impact on global weather patterns, temperatures and rainfall. The World Meteorological Organization (WMO) has warned that conditions are becoming increasingly favourable for the return of El Nino, a climate phenomenon often linked to extreme heat, droughts, floods and disruptions to monsoon systems around the world.

80% Chance of El Nino Expected to Strengthen Between June and August, Says WMO

According to the UN weather agency, there is an 80% probability that El Nino conditions will emerge between June and August 2026. The likelihood of the event continuing until at least November is even higher at around 90%. Scientists say the developing event could range from moderate to strong intensity, adding further uncertainty to weather forecasts in the months ahead.

What is El Nino and How It Occurs?

El Nino occurs when surface waters in the central and eastern Pacific Ocean become significantly warmer than normal. This warming weakens normal wind patterns and alters atmospheric circulation, affecting rainfall and temperature patterns across large parts of the world. The phenomenon generally develops every two to seven years and can persist for several months.

Meteorologists are particularly concerned because El Nino is now forming in a world that is already warmer due to climate change. Global temperatures have risen substantially over the past century because of greenhouse gas emissions, and the additional warming associated with El Nino could push temperatures to new records. Some climate experts believe the combination of climate change and a strong El Nino could make the next few years among the hottest ever recorded globally.

El Nino Forecast 2026 in India: Monsoon Could Face Fresh Challenges

For India, the biggest question is how El Nino may influence the southwest monsoon. Historically, several El Nino years have been associated with weaker-than-normal monsoon rainfall. Warmer Pacific waters can disrupt atmospheric conditions that normally help carry moisture-laden winds towards the Indian subcontinent during the monsoon season.

Rainfall Deficit to Agricultural Risks, if El Nino Intensifies in India?

A weaker monsoon can have wide-ranging consequences for the economy. Lower rainfall may affect sowing activities, reduce crop yields, lower reservoir levels and increase dependence on irrigation. Sectors such as agriculture, power generation and rural consumption often remain sensitive to monsoon performance, making El Nino forecasts closely watched by policymakers and farmers alike.

However, weather experts caution that El Nino alone does not determine India's monsoon outcome. Other climatic factors, including conditions in the Indian Ocean and regional weather systems, can sometimes offset or reduce its impact. As a result, an El Nino year does not automatically translate into drought conditions across the country.

Apart from rainfall concerns, El Nino is also known for intensifying heat. Many regions of India tend to experience above-normal temperatures during El Nino years, particularly across northern, central and western states. Prolonged heatwaves can increase pressure on electricity demand, water resources and public health systems, especially during the peak summer months.

Agriculture may face additional challenges if rainfall becomes uneven. Delayed monsoon onset, longer dry spells and moisture stress can affect crops such as rice, pulses and oilseeds. Lower agricultural output can eventually influence food prices, making weather developments an important factor for inflation as well.

Interestingly, El Nino does not always mean less rainfall everywhere. While some regions experience drought-like conditions, others can witness intense rainfall events and flooding. Scientists note that El Nino often redistributes rainfall patterns rather than simply reducing overall precipitation. This means some parts of India could still receive episodes of heavy rain even if seasonal monsoon rainfall remains below normal.

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