नेपाली
KATHMANDU, SEPTEMBER 22, 2026
Nepal is preparing for another spell of potentially heavy rainfall as a low-pressure system developing over the Bay of Bengal is expected to increase rainfall activity across the country from September 24 to 28.
Meteorologists have warned that some areas could receive very heavy to extremely heavy rainfall during the period, although the exact intensity and locations are still uncertain as the weather system continues to develop. The Department of Hydrology and Meteorology (DHM) is monitoring the system and is expected to issue further updates as its movement and strength become clearer.
Several weather models have indicated the possibility of rainfall exceeding 400 millimetres in some locations during the forecast period. One model has projected rainfall as high as 741 mm, although experts have stressed that such figures represent model scenarios and should not be interpreted as a uniform forecast for the entire country.
The potential rainfall comes at a sensitive time for Nepal, which is still dealing with the aftermath of recent flooding and landslides. Weather experts have therefore urged authorities and the public to remain alert, particularly in areas vulnerable to floods, landslides and inundation.
According to recent weather assessments, western and central Nepal could see significant rainfall, while the latest DHM-related reports have also highlighted parts of Lumbini, Madhesh and Koshi provinces for potentially higher-intensity rainfall. The areas and intensity, however, could change as the system develops.
Risk of floods and landslides
The forecast has raised concerns over possible disruption to roads, settlements and ongoing recovery efforts in areas already affected by recent disasters.
Nepal’s experience with extreme rainfall in recent years has shown how quickly prolonged rain can trigger flooding, landslides and road blockages. During the September 2024 extreme rainfall event, the DHM recorded more than 400 mm of accumulated rainfall at several stations, while one station recorded more than 500 mm over the three-day period.
With another period of heavy rain approaching, authorities are being urged to strengthen early-warning systems, monitor vulnerable river corridors and slopes, and keep rescue and relief arrangements ready.
Public urged to remain alert
Weather experts have advised people not to panic but to closely follow official forecasts and warnings. People living near rivers, flood-prone settlements and unstable slopes are particularly advised to monitor changing conditions. Unnecessary travel should also be avoided if heavy rainfall causes deterioration of road conditions.
The weather system is still developing, meaning the forecast could change over the coming days. The DHM has said it is continuously monitoring the situation and will provide additional information as the system evolves.
For now, authorities and the public are being advised to use the coming days for preparation rather than waiting until heavy rainfall begins.
Reference: The Kathmandu Post
