Heavy Showers Over Delhi/NCR Today-Tomorrow: Another Spell On Weekend

Key Takeaways:

• Heavy rain is likely across Delhi-NCR today and tomorrow, with the most intense activity expected on Thursday.
• Rainfall will temporarily reduce on August 7 and 8 as the monsoon trough shifts south of Delhi.
• Monsoon showers are expected to return and intensify again from Sunday into early next week.
• Daytime temperatures will remain around 33°C, keeping heat and sultry conditions under control.
• Forecast Validity: Next 2 to 3 days.

Delhi and the adjoining NCR region witnessed fairly widespread rain and thundershowers during the past 24 hours. Safdarjung, Palam and Lodhi Road recorded 10.8 mm, 8.3 mm and 3.9 mm of rainfall, respectively. Ayanagar received moderate to heavy showers, recording 49.3 mm of rainfall. Most other locations recorded less than 5 mm. Heavy rainfall is likely over Delhi-NCR today and tomorrow. After a brief lull, showers are expected to return on Sunday and continue into the early part of next week.

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The seasonal monsoon trough across the Indo-Gangetic Plains remains the primary trigger for monsoon showers over Delhi. The passage of Western Disturbances and the remnants of monsoon systems from the Bay of Bengal, whenever present, act as additional catalysts, enhancing weather activity over the region. Frequent oscillations of the monsoon trough under the influence of these systems continue to alter weather conditions intermittently. A similar pattern is expected to persist for the next 5–6 days, until about August 11.

At present, the monsoon trough is passing through Ganganagar, Delhi, Lucknow, and further eastward across Jharkhand, West Bengal, and Manipur. It is expected to maintain this position today and tomorrow, triggering sharp and heavy spells of rain, though these are likely to be brief. The activity is expected to become more intense and last longer tomorrow, with the possibility of extending into the morning hours of Friday.

Thereafter, a cyclonic circulation developing over northwest Madhya Pradesh and southwest Uttar Pradesh in the lower levels will pull the monsoon trough south of Delhi once again on August 7 and 8. As a result, rainfall activity is expected to become lighter and more fleeting during these two days. Another increase in rainfall activity is likely at the beginning of next week under similar synoptic changes.

Persistent cloud cover and prolonged monsoon activity will keep daytime temperatures suppressed. The maximum temperature is expected to remain around 33°C (±1°C) over the next 5–6 days. Oppressive heat and sultry conditions will stay away, with relatively comfortable weather prevailing during the late evening, night, and early morning hours.

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