Fresh monsoon activity may soon spread across large parts of east and central India. Weather systems are beginning to form over the Bay of Bengal. Forecasters expect the next seven to 10 days to become an important phase for the Southwest Monsoon. Several low-pressure systems may develop and move inland.
A long zone of atmospheric convergence has formed. It stretches from the Bay of Bengal towards the western Pacific. Such zones can help organised weather systems develop. They bring together moisture-laden winds. Therefore, conditions become more favourable for low-pressure areas.
Several low-pressure systems may emerge along this zone. They could move westward toward central India over the next five to seven days. As these systems travel inland, they may trigger widespread showers across eastern and central regions. This rain could help areas that have remained deficient during the monsoon season.
The first half of September may decide the season’s final outcome. Rainfall in this period could change the overall monsoon numbers. Forecasters say a swing of about 5 percent above or below current levels is still possible. That shift will depend on how active the monsoon becomes.
Rainfall so far in the 2026 Southwest Monsoon has been uneven. Ladakh has recorded the largest surplus at 204 percent above normal. Dadra and Nagar Haveli and Daman and Diu have seen a 51 percent surplus. Odisha is 25 percent above normal. Delhi has also received 18 percent excess rainfall.
Several states still face large deficits. Meghalaya has the sharpest shortfall at 58 percent below normal. Manipur is 43 percent below normal. Bihar is 42 percent below normal. Arunachal Pradesh and Andhra Pradesh are both around 40 percent below normal.
India as a whole has received 587.8 mm of rainfall. The normal amount for this period is 679.5 mm. This leaves a seasonal deficit of 13 percent. Despite the shortfall, the monsoon still falls within the India Meteorological Department’s normal rainfall category.
The developing Bay of Bengal systems may now play a decisive role. Rainfall in early September could also shape the final picture. Together, these factors may determine how the 2026 monsoon season ends.