Delhi Heatwave: Capital Sizzles as Temperatures Cross 40°C in April, Only Second Time in 15 Years
New Delhi, April 8, 2025 — The national capital is reeling under intense heat, with mercury levels breaching the 40°C mark in several areas on Monday. This rare April heatwave has brought back memories of similar conditions in 2011 and again in 2022, marking only the second time in 15 years that Delhi has recorded such scorching temperatures so early in the year.
Heatwave Returns to Delhi in April
As per the India Meteorological Department (IMD), the Safdarjung weather station — considered the city’s base observatory — recorded a maximum temperature of 40.2°C, which is 5.1°C above normal, officially qualifying as a heatwave. The minimum temperature was reported at 20.2°C, slightly above the season’s average.
The IMD defines a heatwave in Delhi when the maximum temperature surpasses 40°C and is more than 4.5°C above normal. A “severe heatwave” is declared if temperatures climb 6.5°C or more above the seasonal average.
Temperature Soars Across Multiple Areas
Apart from Safdarjung, heatwave conditions were observed in Ayanagar and Ridge areas:
| Weather Station | Max Temp (°C) | Above Normal (°C) |
|---|---|---|
| Safdarjung | 40.2 | +5.1 |
| Ridge | 41.0 | +5.9 |
| Ayanagar | 41.0 | +6.1 |
Ayanagar’s temperature, in particular, nearly touched the severe heatwave threshold, causing discomfort for residents, especially those engaged in outdoor work.
IMD Issues Yellow Alert for Heatwave Conditions
The IMD has issued a Yellow Alert for the next two days, warning of persistent heatwave conditions across the city. Forecasts suggest that maximum temperatures may rise further to 42°C in some areas by Tuesday.
Adding to the weather anomaly, Delhi and northern India have seen significantly reduced rainfall this season due to a weakened western disturbance system. This has left the region dry and vulnerable to early heatwaves.
Residents Battle Rising Heat
The scorching sun from as early as 11 AM led to sweltering conditions across the capital, affecting commuters and outdoor laborers alike. Motorists and pedestrians reported heat exhaustion, and many were seen seeking shelter during peak afternoon hours.
Experts are urging residents to stay hydrated, wear light clothing, and avoid outdoor exposure between 12 PM and 4 PM during the ongoing heat alert.
