Kathmandu River Levels Below Alert, Rainfall May Lead to Rise

River levels across Nepal, including those near Kathmandu, are currently below alert thresholds, though rainfall could cause them to rise.

Floods & WeatherKathmandu3 min read

Compiled by the Mantra Mountain News Desk from the sources cited at the foot of this page. How we report

What we know

  • As of Saturday morning, water levels in major Nepalese rivers are below the alert threshold, Khabarhub reported.
  • The Flood Forecasting Division indicated that rainfall has the potential to increase river flows.
  • Rivers mentioned include the Koshi, Narayani, Bagmati, Karnali, Mahakali, Kankai, Kamala, Babai, and East Rapti.

What this means if you are travelling

  • Travellers should be aware that while current river levels are safe, heavy rainfall could lead to rapid increases in water flow.
  • Those with plans near rivers or their tributaries, particularly during or after rain, should monitor local conditions.
  • This update primarily concerns riverine areas and does not currently indicate widespread disruption to major trekking routes away from river valleys.
  • It is advisable to check with local operators for the latest conditions if your itinerary involves river crossings or areas prone to flash flooding.

As of Saturday morning, water levels in Nepal's main rivers, including those that flow through or near Kathmandu, are currently below the official alert threshold. Khabarhub reported this assessment from the Flood Forecasting Division on September 12, 2026.

Despite the current low levels, the Flood Forecasting Division has noted that any significant rainfall has the potential to cause river flows to increase. This advisory is relevant for several major rivers and their tributaries across the country.

Rivers Monitored Across Nepal

The Flood Forecasting Division is actively monitoring a comprehensive list of rivers, as detailed by Khabarhub. This includes key waterways that span various regions of Nepal.

  • Koshi River and its tributaries
  • Narayani River and its tributaries
  • Bagmati River and its tributaries
  • Karnali River and its tributaries
  • Mahakali River and its tributaries
  • Kankai River
  • Kamala River
  • Babai River
  • East Rapti River

These rivers are vital to many communities and regions, and their status directly impacts local safety and infrastructure.

Implications for Travellers in Nepal

For travellers currently in Nepal or planning a trip, the news indicates a need for awareness rather than immediate concern. While river levels are presently safe, the possibility of rising flows due to rain means vigilance is prudent.

If your travel plans include areas close to any of the mentioned rivers, particularly during the monsoon season, it is wise to stay informed about local weather forecasts. This is especially true for routes that might involve river crossings or low-lying areas adjacent to rivers.

This update from the Flood Forecasting Division does not suggest widespread travel disruptions for regions like Pokhara or the major Himalayan trekking trails, unless those routes specifically traverse or closely follow the named river valleys. Most popular trekking routes, such as the Annapurna or Everest regions, are generally at higher elevations, but access roads can be affected by heavy rains.

Staying Informed

Mantra Mountain advises all travellers to maintain contact with their trekking or tour operators for the most current and specific advice related to their itineraries. Operators will have the latest information on local conditions and any potential impacts on routes or activities.

Reported by

This update summarises reporting from the outlets below and adds our own planning guidance. Follow the links for the original reports.

Questions travellers are asking

Are rivers in Kathmandu currently at flood risk?

As of Saturday morning, September 12, 2026, river levels in major rivers across Nepal, including those around Kathmandu, are below the official alert threshold. This means they are not currently at a flood risk level, according to the Flood Forecasting Division.

Could river levels rise in Nepal?

Yes, the Flood Forecasting Division has indicated that while current levels are low, rainfall could lead to an increase in river flows. Travellers should be aware that conditions can change if there is significant rain.

Which specific rivers are being monitored?

The Flood Forecasting Division is monitoring the Koshi, Narayani, Bagmati, Karnali, Mahakali, and their tributaries. Additionally, the Kankai, Kamala, Babai, and East Rapti rivers are also under observation, as reported by Khabarhub.

Does this affect trekking in the mountains?

The immediate impact of this update primarily concerns areas near the specified rivers and their tributaries. While most high-altitude trekking routes are less directly affected by river levels, heavy rainfall can still impact access roads and trails in lower elevations. Travellers should check with their operators for specific route conditions.

Background reading

MM
Mantra Mountain News Desk
Mantra Mountain Nepal Treks · Pokhara, Nepal
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