Capital Under The Sun: IMD Flags Heatwave As Delhi Scorches At 43.6°C

Nikunj Parikh May 24, 2026 750 Views

Delhi has recorded a maximum temperature of around 43.6 degrees Celsius, prompting the India Meteorological Department (IMD) to issue a yellow alert for heatwave conditions for the next three days. The city is likely to see daytime temperatures hovering between 43°C and 45°C in some areas, with hot, dry winds and clear skies reducing any chance of natural cooling. Residents have been advised to avoid peak afternoon sun, stay indoors where possible, and increase fluid intake to prevent heat‑related illnesses.

Heatwave Pattern Across Delhi

The IMD has flagged that several stations in Delhi, including ridge and peripheral areas, are already reporting temperatures significantly above the seasonal average. Some pockets are touching or crossing 45°C, while most of the city remains firmly in the 42–44°C band during the afternoon. Night‑time minimum temperatures are also elevated, staying around 27–29°C, which means homes and buildings do not cool down enough before the next day’s heat sets in. This continuous heat accumulation increases discomfort, particularly for those without access to air‑conditioning.

What A Yellow Alert Signifies For Residents

A yellow alert is an early heatwave warning that urges people and local authorities to “be aware and stay updated.” It indicates that conditions can be dangerous, especially for vulnerable groups such as children, the elderly, pregnant women, outdoor workers, and people with heart, lung or kidney issues. Over the next three days, the IMD expects:

Heatwave‑to‑severe‑heatwave conditions in isolated pockets of Delhi‑NCR

Maximum temperatures broadly in the 43–45°C range in some areas
Very dry air and strong sunlight with almost no cloud cover
Limited chances of rain or thunder activity to provide relief

Officials are advising citizens to:

Avoid going out between 12 noon and 3 pm unless essential
Use hats, umbrellas, sunglasses and light, loose, cotton clothing
Sip water, ORS, buttermilk or lemon water regularly, even without feeling thirsty
Avoid alcohol, very sugary drinks and heavy, oily food
Check on elderly neighbours, infants and those living alone

Why Delhi’s Heatwaves Are Getting Worse

Climatologists and urban planners point to a combination of climate change and rapid urbanisation. Rising global temperatures are pushing baseline averages higher, while Delhi’s expanding concrete surfaces, shrinking green cover and dense construction are amplifying the “urban heat island” effect. This means the city absorbs heat quickly during the day and releases it very slowly at night, making each heatwave more punishing than the last.

For now, IMD models do not indicate any strong western disturbance or widespread pre‑monsoon showers immediately on the horizon. That suggests Delhi will likely remain in a hot, stressed pattern at least through the current alert window, with only marginal dips in temperature possible.

Heatwave Alert Highlights

Maximum temperature around 43.6°C; some pockets touching 45°C
Yellow alert in force for at least the next three days
Elevated night temperatures keeping homes uncomfortably warm
High risk for elderly, infants, outdoor and construction workers
IMD urges reduced afternoon exposure, frequent hydration and close monitoring of vulnerable groups