Southwest Monsoon hits Delhi on July 3, IMD issues yellow alert for Friday
Synopsis
Key Takeaways
The India Meteorological Department (IMD) officially declared the onset of the Southwest Monsoon over New Delhi on Thursday, 3 July, as favourable atmospheric conditions triggered widespread rainfall across the national capital and its adjoining regions. The arrival, though five days later than the climatological normal date of 27 June, brought substantial relief from a prolonged stretch of oppressive heat — even as humidity levels remained elevated, ranging between 61 and 95 per cent.
Rainfall and Temperature Impact
Rain lashed several parts of Delhi-NCR through the day, pulling the maximum temperature down to 33 degrees Celsius — a notable 4.4 degrees below the seasonal average. The minimum temperature settled at 22.8 degrees Celsius, 5.1 degrees below normal. The dip offered a marked contrast to the two consecutive heatwave days Delhi endured in late June before pre-monsoon thunderstorms began to provide initial relief.
IMD Yellow Alert and Forecast Ahead
Following the monsoon's arrival, the IMD issued a yellow alert for Delhi and surrounding areas for Friday, 4 July, forecasting generally cloudy skies with moderate rainfall, thunderstorms, and gusty winds. Rain and thunderstorms are expected to continue through Saturday and Sunday as well, with daytime temperatures projected to remain between 33 and 38 degrees Celsius until 8 July. Meteorologists predict temperatures could dip by a further 2 to 3 degrees Celsius over the extended wet spell. Residents have been advised to keep umbrellas handy over the coming days.
Monsoon Advance Across North India
The IMD confirmed that the Southwest Monsoon has simultaneously advanced over Delhi, most parts of Haryana and Punjab, the remaining areas of Uttar Pradesh, and additional parts of Rajasthan, Madhya Pradesh, and Gujarat. The broad advance signals a significant northward push of the monsoon system across the Indo-Gangetic plain.
Historical Context of Delhi's Monsoon Arrival
This year's onset is slightly later than last year's arrival on 28 June, but considerably earlier than in 2021, when the monsoon reached Delhi on 13 July, and in 2002, when it was delayed until 19 July — the latest recorded onset since 2001. At the other end of the spectrum, the earliest monsoon arrival in Delhi since 2001 was on 15 June 2008. Over the past 25 years, the monsoon has typically reached the capital between the last week of June and the first week of July, making this year's arrival broadly within the historical range despite the brief delay.
With the monsoon now established over the capital and a wet weekend forecast, conditions are set to shift decisively from the pre-monsoon heat cycle that had gripped Delhi for weeks.