Delhi Records Hottest Day of 2025 at 40°C; IMD Forecasts Heatwave in North India

The India Meteorological Department (IMD) has forecasted nearly twice the usual number of heatwave days in northwest India this year. On March 26, Delhi experienced its hottest day of 2025, with temperatures soaring to a blistering 40.5 degrees Celsius.

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Ridge Observatory Records 40°C, Surpassing Previous Highs

On Wednesday, the Ridge observatory recorded a maximum temperature of 40°C, which is 6.3°C above the normal. This surpassed the previous highest of the year, 37.1°C, recorded on Tuesday. The highest temperature in March 2024 was 37.8°C, recorded on March 29, while in 2023, the hottest day was March 15, with a maximum of 34.3°C, according to IMD data.

Delhi Records Hottest March Day Since 2022, IMD Warns of More Heatwave Days

According to the data from the IMD, the last time Delhi experienced such a high temperature in March was back in 2022, when it peaked at 39.1 degree Celsius on March 29. Humidity levels fluctuated between 19 per cent and 52 per cent during the day. The minimum temperature had settled at 17.7 degree Celsius, the IMD reported. The weather department has predicted nearly double the number of heatwave days across Northwest India in the summer season. Typically, the region records five to six heatwave days in a season, but this year, it is likely to experience 10 to 12 days.

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IMD Predicts Increased Heatwave Days in Northwest India

“We are expecting slightly above normal heatwave conditions, especially over West and Central India. Generally, Northwest India sees around 5 to 6 heatwave days. This year, we expect 10 to 12 days, which is double the normal,” IMD scientist Soma Sen Roy said while clarifying that this is a seasonal prediction and does not mean that all the days of the season will be above normal. However, the IMD official did not comment on whether this year will be warmer than 2024, which was India’s hottest year on record. Last year, the country experienced 554 heatwave days.