A Break in the Monsoon
In early September, large parts of North, Northwest, and Peninsular India experienced a noticeable break in monsoon activity. Strong, dry northwesterly winds swept across states like Punjab, Haryana, Rajasthan, and even Madhya Pradesh, leading to clearer
skies and a pause in the rain. This lull, however, does not mean the monsoon season has formally withdrawn. The India Meteorological Department (IMD) considers the season over only after specific conditions are met, such as five consecutive dry days and a significant drop in moisture. While this break has provided temporary relief from persistent downpours in some areas, it has also occurred against the backdrop of a season that has been largely uneven. As of September 7, the country as a whole was facing a rainfall deficit of about 14%.
All Eyes on the Bay of Bengal
The focus has now shifted to the Bay of Bengal, where a new weather system is taking shape. The IMD's extended-range forecasts indicate that a cyclonic circulation is expected to form over the central and northwest Bay of Bengal. This is a classic signal for a potential revival of monsoon activity. Forecasters anticipate that this circulation will intensify into a low-pressure area around September 11, likely off the coasts of south Odisha and north Andhra Pradesh. Such systems are the primary drivers of monsoon rainfall during this phase of the season, and their development is being closely monitored to understand the next chapter of this year's monsoon.
Forecast Path and Potential Impact
Once formed, the low-pressure area is expected to move in a west-northwestward direction, pushing moisture-laden winds inland. This trajectory is crucial as it determines which parts of the country will receive rainfall. Current projections suggest that the system will bring a fresh spell of rain to eastern and adjoining central parts of India. The IMD has already forecast fairly widespread rain for Chhattisgarh, Vidarbha, and Odisha between September 10 and 12. West Bengal is also expected to see heavy rainfall in several southern districts. For states in Peninsular India that have been experiencing a dry spell, this system could become active from September 14 onwards, potentially bringing much-needed showers.
The Bigger Monsoon Picture for 2026
This upcoming wet spell is critical in the context of the 2026 monsoon's overall performance. The season has been marked by erratic distribution, with some regions facing significant deficits while others have seen surpluses. For instance, as of early September, rainfall in South Peninsular India was 27% below normal, while the deficit in East and Northeast India stood at 24%. The performance in September is particularly important for agriculture, as it impacts soil moisture ahead of the winter cropping (Rabi) season. While the IMD had earlier forecast a below-normal September, this incoming system from the Bay of Bengal could help offset some of the deficits in central and eastern India, playing a decisive role in the final monsoon tally.
