The forecast has highlighted a possibility of heavy rainfall. Nepal is expected to experience widespread cloudy conditions today, with the Department of Hydrology and Meteorology (DHM) forecasting the possibility of significant rainfall in several provinces. According to the latest weather bulletin, heavy rainfall is likely at one or two places in the hilly areas of Koshi and Bagmati Provinces. Despite the weakening of the monsoon system, the inflow of moisture-laden air from the Bay of Bengal continues to influence the country’s weather patterns.
The DHM has highlighted that moderate rainfall could occur in multiple regions, particularly in the Tarai belt and hilly areas of Koshi and Bagmati Provinces, as well as in the hilly terrain of other provinces. With heavy cloud cover expected throughout the day, the weather remains unsettled, raising concerns about localized flooding, landslides, and other monsoon-related hazards.
Rainfall Forecast for Tonight
Tonight, weather conditions are projected to remain generally cloudy in Koshi Province, Madhesh Province, and the hilly areas of the remaining provinces. Meanwhile, partial cloud cover is expected in other parts of the country. The DHM has warned of moderate rainfall in several locations, especially in the hilly and Tarai regions of Koshi, Gandaki, and Sudurpaschim Provinces. Similarly, rainfall is forecast at one or two places in the Tarai region of other provinces as well.
Of particular concern is the possibility of heavy rainfall at one or two places in both the Tarai and hilly areas of Koshi Province. Such downpours could result in flash floods, river swelling, and disruptions to road transportation in the vulnerable regions. Authorities have urged residents, particularly those living near rivers, streams, and landslide-prone slopes, to remain alert.
Monsoon Activity Weak but Moisture Inflow Persists
The monsoon system has weakened in recent days, yet the weather remains active due to the continuous entry of water vapor-rich air from the Bay of Bengal. Experts note that even when the monsoon circulation weakens, the presence of sufficient moisture in the atmosphere can still trigger significant rainfall events. This explains why certain regions, especially in eastern and central Nepal, continue to witness intermittent showers.
According to meteorologists, the weakening monsoon is part of the natural fluctuation that occurs during the mid-to-late phase of the season. While prolonged heavy rainfall events are less frequent, localized heavy downpours remain common, especially in mountainous and Tarai regions where atmospheric conditions can intensify rain activity.
Risks of Floods and Landslides
With the forecast indicating heavy rainfall in Koshi and Bagmati Provinces, disaster management authorities are keeping a close watch on flood-prone and landslide-vulnerable areas. The hilly districts of eastern and central Nepal are particularly susceptible to landslides, especially where the soil has already been saturated by earlier rains. Similarly, the Tarai belt faces the threat of flash floods, which can disrupt transportation, agriculture, and daily life.
The Department has urged people to exercise caution while traveling along highways and rural roads, as sudden downpours could trigger landslides or wash away sections of road infrastructure. In addition, those living in floodplain areas have been advised to stay alert to the possibility of rising river levels.
Agriculture and Daily Life Impact
The intermittent rainfall continues to play a dual role for Nepal’s agricultural sector. On one hand, moderate rainfall is beneficial for paddy cultivation and other summer crops, which depend heavily on timely water supply. On the other hand, excessive rainfall, especially in the form of sudden heavy showers, risks damaging standing crops and creating waterlogging conditions in the Tarai plains.
Farmers in Koshi and Bagmati Provinces have welcomed the rainfall for its contribution to soil moisture, but concerns remain over unpredictable heavy showers that may damage crops nearing maturity. The irregular rainfall pattern also poses challenges for smallholder farmers who depend on consistent weather conditions for productivity.
Outlook for Coming Days
Meteorologists suggest that cloudy weather conditions and intermittent rainfall are likely to persist for the next few days as the weak monsoon continues its gradual retreat. The inflow of moisture from the Bay of Bengal may sustain localized rainfall events, particularly in eastern and central Nepal. The DHM has stated that while no widespread heavy rainfall system is currently active, residents should remain cautious of localized extreme events.
In the longer term, weather experts are monitoring the progression of the monsoon withdrawal phase. Typically, Nepal witnesses the gradual withdrawal of the monsoon by late September, but variations are common depending on regional weather conditions. Until then, the possibility of heavy rainfall at localized spots remains, requiring continued preparedness.
Authorities Urge Preparedness
Given the risks associated with monsoon rains, local governments and disaster response agencies have been instructed to stay on standby. Emergency response teams, particularly in flood-prone districts of Koshi and Madhesh, are closely monitoring weather updates and coordinating with communities. The DHM continues to release daily bulletins to keep the public informed of changing conditions.
The Department has also emphasized the importance of public awareness during this period. Simple precautionary measures, such as avoiding unnecessary travel in high-risk areas, monitoring river levels, and preparing emergency supplies, can significantly reduce the impact of sudden rainfall events.
Although the monsoon has weakened, Nepal continues to face weather-related challenges as moisture from the Bay of Bengal sustains rainfall activity. With heavy showers likely in Koshi and Bagmati Provinces, along with moderate rainfall in several other regions, authorities and residents are urged to remain vigilant. The dual impact of rainfall, supporting agriculture while posing risks of floods and landslides, highlights the importance of preparedness during this transitional phase of the monsoon season.
