Visitors seen walking as they covered their head to protect from scorching heat on a hot summer, as a heatwave swept across North India, near India Gate in New Delhi | Photo Credit: SHIV KUMAR PUSHPAKAR

Delhi recorded its warmest night for the month of May in nearly 14 years on Monday as the minimum temperature settled at 32.4 degrees Celsius, 5.7 degrees above the season's normal.

The last time the minimum temperature was higher in this month was on May 26, 2012, when it was recorded at 32.5 degrees Celsius, according to the India Meteorological Department (IMD).

The city had witnessed similar conditions earlier this month as the minimum temperature stood at 31.9 degrees Celsius on May 21 this year, the IMD data showed.

According to the IMD, the minimum temperature recorded at Palam was 30.5 degrees Celsius, 3.4 degrees above normal,Lodi Road 30 degrees Celsius, 5 degrees above normal, Ridge 30.6 degrees Celsius, 4.4 degrees above normal, and Ayanagar 32 degrees Celsius, 5.3 degrees above normal.

"Warm night conditions have been recorded at Safdarjung, Lodi Road and Ayanagar," an IMD official said.

A warm night is declared when the maximum temperature remains 40 degrees Celsius or more and the minimum temperature departure is between 4.5 degrees Celsius and 6.4 degrees Celsius above normal, according to the IMD.

The IMD has issued a yellow alert for heatwave conditions on Monday, with the maximum temperature likely to hover around 44 degrees Celsius.

Delhi also witnessed mild dust storms during the evening hours on Sunday, leading to a deterioration in air quality. The city's Air Quality Index (AQI) was recorded at 206 in the 'poor' category at 9 am on Monday.

According to the Central Pollution Control Board (CPCB), an AQI between 0 and 50 is considered 'good', 51 and 100 'satisfactory', 101 and 200 'moderate', 201 and 300 'poor', 301 and 400 'very poor', and 401 and 500 'severe'.

Published on May 25, 2026