Delhi Faces Rising Threat of Simultaneous Heatwaves and Droughts
Delhi Faces Rising Threat of Simultaneous Heatwaves and Droughts
IN · Published Nov 5, 2026
• A recent study by researchers from IISER Bhopal and MANIT Bhopal highlights a growing climate challenge for Delhi, where simultaneous heatwaves and droughts are becoming increasingly frequent. These compound dry-hot events, characterised by extreme temperatures and severe rainfall deficits, have intensified since
• The study, which analysed meteorological data from 1958 to 2023 using the TerraClimate database, found that these events are no longer rare occurrences. The research also predicts that with global warming, the return period for severe compound events could shrink to just 14 months, compared to the historical average of 2.5 years. The urban heat-island effect in Delhi, caused by extensive concrete infrastructure, exacerbates the problem by trapping and radiating heat, further intensifying the impact of these events.

Impact & Risks

The increasing frequency of compound dry-hot events poses significant risks to Delhi's 20 million residents. These events disrupt natural cooling mechanisms, leading to higher temperatures and prolonged heat stress. The lack of rainfall during these periods also exacerbates water scarcity, impacting agriculture, public health, and urban infrastructure. The study warns that these events are expanding beyond the pre-monsoon months into the monsoon and post-monsoon seasons, reducing the city's seasonal relief and increasing the likelihood of prolonged climate stress. Without adequate mitigation measures, the city's resilience to these compounded hazards could be severely compromised.

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