Cyclonic Storm to Bring Rainfall to Nepal Next Week
A low-pressure system in the Bay of Bengal is set to intensify, impacting weather conditions in Nepal through early November.
Updated on Oct. 24, 2026 in Forecasts
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A developing low-pressure system over the Bay of Bengal is forecast to intensify into a cyclonic storm by Monday, October 26. This system is expected to bring significant rain and snowfall to Nepal starting October 28.
Why it matters
The movement of this weather system toward the coasts of Andhra Pradesh and Odisha, coupled with an upper-level trough, threatens to alter weather patterns in Nepal shortly after its official monsoon withdrawal.
A low-pressure area that formed on October 23 is moving west-northwestward toward the coast of northern Andhra Pradesh and southern Odisha. The system is expected to place 28 districts in Nepal under weather-related risks as it interacts with an upper-level trough.
The players
Department of Hydrology and Meteorology
This is the Nepalese government agency responsible for monitoring atmospheric conditions and issuing official weather bulletins.
The details
The weather system is projected to affect Nepal from October 28 to November 1, with peak rainfall risks anticipated on October 30 and 31. This shift follows the official withdrawal of Nepal's monsoon, which occurred on October 14.
Timeline
October 14: Monsoon withdrawal occurred in Nepal.
October 23, 5:45 am: Low-pressure system formed over the Bay of Bengal.
October 26: Expected development into a cyclonic storm.
October 28 to November 1: Weather system expected to affect Nepal.
October 30 to 31: Peak rainfall risk in Nepal.
Seasonal Patterns
This weather event occurs immediately following the post-monsoon withdrawal cycle, marking a return of precipitation risk to the region. The incoming system highlights how post-monsoon moisture can still cause significant instability in the Himalayas.
Residents in the 28 affected districts should prepare for potential rain and snowfall by monitoring local bulletins from the Department of Hydrology and Meteorology. Travelers in high-altitude areas should remain alert for shifting conditions during the peak risk window of October 30 to 31.
The takeaway
Large-scale weather systems in the Bay of Bengal can significantly alter post-monsoon conditions in landlocked regions like Nepal. Residents should remain prepared for sudden shifts in precipitation throughout the transition into November.
Further reading
Stay updated on regional atmospheric changes in our Forecasts section.
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