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Monsoon's Comeback: India Deficit Shrinks, But More Rain Needed
23 Jul
Summary
- India's monsoon has shown significant recovery with clouds covering most of the country.
- Despite recent heavy rain, the monsoon season remains 21% short of the average.
- August is critical, as low pressure systems from the Bay of Bengal are vital for recovery.
India's monsoon has recently shown a remarkable resurgence, with satellite imagery confirming cloud cover over nearly the entire nation and the India Meteorological Department (IMD) reporting very heavy rainfall in multiple subdivisions. Despite this positive development, the monsoon season is currently experiencing a 21% deficit against the long-period average (LPA) of 868.6 mm for June to September.
To rectify this shortfall, India requires an estimated 15% increase in weekly rainfall above normal levels to continue until the season's end. This means accumulating an additional 76 mm of rain to compensate for the current deficit, on top of the approximately 500 mm of normal rainfall expected before September 30.
The recovery is often driven by low-pressure systems originating from the Bay of Bengal, which typically lead to substantial rainfall across various states over several days. August is considered the primary 'recovery month' for the monsoon due to the increased likelihood of these systems forming and moving inland.
Furthermore, the presence of El Nino, characterized by unusual warming in the Pacific, poses a challenge as it tends to suppress rainfall over India. While the IMD's forecast had already factored in El Nino for 2026, indicating a potential 90% LPA, localized rainfall remains crucial, especially for agricultural regions without irrigation, as regional rain does not benefit distant dry fields.
