India Heatwave Forecast: IMD Predicts Above-Normal Temperatures March-May 2024

Most of India is bracing for a hotter-than-usual March through May, according to a forecast released Saturday by the India Meteorological Department (IMD). The prediction points to an above-normal number of heatwave days across a large swathe of the country, raising concerns about public health, strain on essential services, and potential economic impacts.

The regions expected to be most affected include West Rajasthan, Gujarat, Haryana, Punjab, southern and eastern Maharashtra, eastern Uttar Pradesh, Bihar, Jharkhand, Gangetic West Bengal, Odisha, Chhattisgarh, Telangana, Andhra Pradesh, and portions of north Karnataka and north Tamil Nadu. The IMD’s Director-General, Mrutyunjay Mohapatra, highlighted the potential risks to vulnerable populations – the elderly, children, outdoor workers, and those with pre-existing health conditions – during a press conference.

A Complex Picture: March Temperatures and Rainfall

While the long-range forecast anticipates widespread heatwave conditions over the March-April-May (MAM) season, the picture for March itself is more nuanced. The IMD expects normal to below-normal maximum temperatures across much of the country, with exceptions in northeast and east India, as well as parts of the Western Himalayan region, central India, and the peninsula. Minimum temperatures are as well likely to remain near normal for most areas, though northwest India, the southern peninsula, and the east coast may experience normal to below-normal nighttime lows.

This relatively moderate March outlook is linked to expectations of normal rainfall for the month. The IMD estimates the average rainfall across India in March to be around 29.9 mm, based on data from 1971 to 2020. However, northeast India, and parts of northwest and east-central India, are predicted to receive below-normal rainfall. You can uncover current weather updates and forecasts directly from the India Meteorological Department (IMD) website.

Economic Implications and Sector Risks

The forecast carries significant implications for several sectors of the Indian economy. Increased heatwave days translate directly into higher energy demand for cooling, potentially straining power grids and driving up electricity costs. What we have is particularly concerning given India’s growing energy needs and ongoing efforts to transition to renewable sources. Agricultural output could also be affected, with heat stress impacting crop yields and livestock. The Business Standard reported on these concerns, noting the potential for significant disruption.

Beyond direct economic costs, the health impacts of prolonged heat exposure can lead to reduced labor productivity and increased healthcare expenditures. Outdoor workers in sectors like construction, agriculture, and transportation are particularly vulnerable. The IMD’s warning underscores the need for proactive measures to protect these workers, including providing access to shade, water, and adjusted work schedules.

El Niño and La Niña: The Underlying Climate Drivers

The IMD’s forecast also considers broader climate patterns. Currently, weak La Niña conditions are present in the equatorial Pacific. However, forecasts suggest a potential return to neutral El Niño-Southern Oscillation (ENSO) conditions in the coming months. ENSO refers to the interaction between the ocean and atmosphere in the Pacific, and its phases (El Niño and La Niña) can significantly influence global weather patterns. A shift towards El Niño typically correlates with warmer temperatures in India.

February’s Weather: A Contrasting Picture

The forecast comes on the heels of a notably mild February. The IMD reported that February 2026 saw the lowest rainfall across India since 2001. Notably, no cold waves or cold days were recorded during the month. The lack of active western disturbances – weather systems that bring rainfall and cooler temperatures to northern India – was cited as the primary reason for the subdued weather. Despite the lack of cold weather, many parts of the country experienced normal to above-normal maximum temperatures, with India recording the 10th highest maximum temperature, the third highest minimum temperature, and the fifth highest mean temperature since 1901.

Looking Ahead: Preparedness and Mitigation

The IMD’s forecast serves as a crucial early warning, allowing for proactive preparedness measures. State governments and local authorities can implement heat action plans, including public awareness campaigns, establishment of cooling centers, and ensuring adequate water supplies. Businesses can also take steps to protect their employees and operations, such as adjusting work hours and investing in cooling technologies. The Hindu provides further details on the forecast and potential impacts.

The long-term implications of increasingly frequent and intense heatwaves also highlight the need for broader climate adaptation strategies. This includes investing in climate-resilient infrastructure, promoting water conservation, and developing heat-resistant crop varieties. Addressing the underlying causes of climate change through emissions reductions remains paramount.

Monitoring ENSO Developments: The IMD will continue to monitor the evolution of ENSO conditions and provide updated forecasts as needed. Changes in ENSO can significantly alter the expected intensity and duration of the heatwave season.