The temperature in the national capital was recorded at 7 degrees Celsius at 5:30 am.
People could be seen jogging and working out at a park in the Kashmiri Gate area, which was covered with a thin layer of haze.
Earlier, Delhi recorded a temperature of 7.4 degrees Celsius at 5:30 am on Saturday.
Meanwhile, air quality in the national capital continued to hover in the 'very poor' category on Sunday morning, according to the System of Air Quality and Weather Forecasting And Research (SAFAR).
As per the Central Pollution Control Board (CPCB), the Air Quality Index (AQI) at IGI Airport (T3) was recorded at 311 at 8.00 am. The AQI in the New Moti Bagh area was recorded in the 'very poor' category at 331. The air quality in Punjabi Bagh was recorded in the 'very poor' category at 382.
The AQI at Anand Vihar was recorded in the 'very poor' category at 385.
As the temperature in New Delhi dropped, the city's homeless sought refuge in night shelters. One such shelter is in Sarai Kale Khan, which is open 24 hours a day and provides bathing facilities, food three times a day, and medical care, including a clinic and medicine.
(Inputs from ANI)