Kathmandu, 23 September 2026

Nepal is heading into a period of unsettled weather, with heavy rainfall, thunderstorms, and snowfall in the Himalayan regions expected from September 24 to 28. Travellers planning trekking or mountain journeys during this period should closely monitor local weather and route conditions before setting out.

According to Nepal’s Meteorological Forecasting Division, rainfall is expected to increase across several parts of the country, while snowfall is possible in higher Himalayan areas. Authorities have warned of possible landslides, flooding, rising rivers, and disruption to mountain travel.

Special caution for Manaslu, Annapurna, Manang, and Mustang

Travellers heading towards Manaslu, Annapurna, Manang, and Mustang should take particular care.

In the Manaslu Base Camp and surroundings, continuous rain and heavy snowfall have already affected mountaineering activity. Climbers have started returning from the area after prolonged poor weather, with reports of significant snowfall around Samagaun and surrounding areas. Source: Online Khabar.

The Annapurna and Mustang areas may also experience rain at lower elevations and snowfall at higher elevations. Conditions around high passes, exposed trails, and remote mountain roads can change rapidly.

Manang and the Thorong La area deserve additional attention because heavy precipitation and fresh snow can quickly affect trail conditions, visibility and pass crossings.

What trekkers should do

This weather does not mean that all trekking in Nepal is cancelled. Conditions can vary considerably between valleys and elevations.

However, travellers planning to trek between September 24 and 28 should:

• Check the latest weather and local trail conditions before departure.
• Stay in regular contact with their guide, trekking agency or local authorities.
• Avoid unnecessary travel during periods of intense rainfall or snowfall.
• Be especially cautious around high passes, landslide-prone slopes and river crossings.
• Carry proper waterproof and warm clothing.
• Be prepared to change the itinerary or wait for safer conditions.

The Department of Tourism has also urged trekkers, mountaineers, and support teams to remain alert during the forecast period and to plan journeys according to changing weather conditions. Via Nepal News https://english.nepalnews.com/s/tourism/tourism-department-urges-caution-in-trekking-areas-heavy-rain-forecast-nationwide/

Travel smart, not rushed.

Nepal's autumn trekking season is beginning, but mountain weather always takes priority over an itinerary. A route that is perfectly manageable one day can become difficult after several hours of heavy rain or snowfall.

For anyone planning Manaslu, Annapurna, Manang, Mustang, or other high-altitude treks in the coming days, the safest approach is to remain flexible and make decisions based on the latest local conditions rather than relying only on a fixed itinerary.

This update is based on weather information and official advisories available on September 23, 2026. Weather conditions in the Himalayas can change rapidly.

The low-pressure area developed over the North Andaman Sea and its surrounding regions is currently located around the central Bay of Bengal. This system is expected to further intensify into a deep depression and move in a west-northwest direction. Due to its influence, rainfall activity is expected to increase in Koshi, Bagmati, and Gandaki provinces starting from Wednesday. Source: Nepal Meteorology Forecast Division