Delhi recorded its hottest day of the year on Tuesday (June 11) as the mercury climbed to 43.8°C at Safdarjung, the city’s base station, four degrees above normal.
The “real-feel” temperature surged to 47.7°C, pushing more regions into the grip of an intense heatwave. The India Meteorological Department (IMD) has issued an orange alert for Wednesday, and the sweltering conditions are expected to persist.
According to IMD weather scientist Krishna Mishra, heatwave conditions were recorded in Lodhi Road, Ridge, and Ayanagar, with Ayanagar logging the highest maximum at 45.5°C. Other areas such as Pitampura (44.8°C), Palam (44.6°C), Ridge (45°C), and Lodhi Road (43.6°C) also reported scorching temperatures.
The IMD defines a heatwave as a maximum temperature of 45°C or more or when temperatures exceed 40°C and are 4.5°C above normal. Based on this criterion, three city zones officially recorded heatwave conditions.
The combination of dry, hot, westerly winds and low humidity (24%–48%) amplified the discomfort. Tuesday overtook Monday’s 43.4°C to become the hottest day of the season, with May 16’s 42.3°C now ranking third.
The above comes with its attendant consequences, including implications for increased health risks as prolonged exposure to extreme heat can lead to dehydration, heat exhaustion, and potentially fatal heatstroke, especially among vulnerable groups such as children, the elderly, pregnant women, and those with pre-existing health conditions.
There could be heat stress, as high humidity levels, ranging from 25% to 70%, make it harder for the body to cool itself, increasing the risk of heat stress and related complications.
Other consequences include Daily and societal disruptions like altered routines, power outages, and water scarcity. They also have economic implications, including reduced productivity and strain on services. Their environmental impacts also include the urban heat island effect, air quality deterioration, and climate change warnings.
In conclusion, Delhi’s record-breaking heat is more than a temporary discomfort; it is a multifaceted crisis affecting health, livelihoods, infrastructure, and the environment.
It underscores the urgent need for adaptive urban planning, stronger public health measures, and robust climate action to protect the city’s residents from the escalating impacts of extreme weather.

