According to the India Meteorological Department (IMD), the minimum temperature was 29.3 degrees Celsius, three notches above average for this time of the season.
"The weather will continue to remain hot and the heat wave conditions are likely to prevail over Delhi for the next few days," the IMD official said.
Humidity recorded at 8.30 a.m. was 31 percent.
Delhi saw its hottest day of the season Sunday with the mercury at 44.6 degrees Celsius, five notches above average. Monday is expected to be hotter still.