22nd October 2025, Kathmandu
Nepal’s weather is currently in a state of transition, with the influence of the Westerly Wind (पश्चिमी वायु) system becoming increasingly prominent.
Nepal Weather Forecast Today Oct 22
The Department of Hydrology and Meteorology (DHM) has confirmed that while much of the country will see fair to partly cloudy skies, the mountainous and high-hilly regions are expected to experience precipitation today, Wednesday, October 22, 2025.
This shift marks a departure from the recently withdrawn monsoon, signaling the start of a cooler, more volatile weather pattern typical of the post-monsoon and early winter seasons.
Travelers and residents in the western and high-altitude areas are advised to stay updated on the latest bulletins.
Current Weather System: A Mix of Sun, Clouds, and Snow
As of this morning, the combined effect of the Westerly Wind system and localized weather patterns is dominating the Nepali atmosphere.
Cloud Cover: The hilly regions of the country, particularly in the west, are experiencing partly to generally cloudy conditions. The remaining areas, including the Terai plains and the Kathmandu Valley, are largely fair with intermittent cloud cover.
Precipitation Forecast: The main impact of the Westerly Trough will be seen in the mountains.
Rain: There is a possibility of light to moderate rain showers in a few places across the hilly regions, particularly in the Karnali and Sudurpaschim provinces.
Snowfall: Light snowfall is likely to occur in one or two places of the high-hilly and mountainous regions of Karnali and Sudurpaschim provinces.
Regional Outlook for October 22, 2025
| Region | Daytime Forecast | Primary Concern/Impact |
| Karnali & Sudurpaschim | Generally cloudy. Light to moderate rain and snowfall at high altitudes. | Wet conditions, reduced visibility, and potential cold in the mountains. |
| Gandaki & Lumbini | Partly cloudy, especially in the western parts. Mostly fair conditions elsewhere. | Scattered light rain possible in isolated western hilly pockets. |
| Bagmati (Including Kathmandu) | Mainly fair to partly cloudy. Clearer weather is expected, especially in the afternoon. | Cool mornings and comfortable daytime temperatures. Minimal rain risk. |
| Koshi & Madhesh | Mostly fair and clear, with isolated patches of cloud in the eastern hilly areas. | Clear, post-monsoon conditions. |
Kathmandu Weather Update
The capital city, Kathmandu, is expected to have a pleasant day. The weather will be partly cloudy this morning, but will clear up for a mostly sunny and comfortable afternoon.
Max Temperature: Expected to range between 26°C to 28°C.
Min Temperature: Expected to be between 13°C to 15°C.
Rain Chance: Very low
Travel Advisory and Precautions
The onset of the Westerly Wind system demands caution for specific activities:
High Altitude Trekking: Trekkers heading to high-altitude destinations (like the Annapurna, Everest, or Langtang regions) should be aware of the risk of sudden snowfall and freezing temperatures. Ensure you have the right gear and check local forecasts.
Aviation: While fog is a greater concern later in the season, localized rain and cloud cover in the western mountains may affect some domestic flights.
Agriculture: Farmers who are currently harvesting late-planted paddy should take precautions against sudden, isolated showers in the western regions.
The Science Behind the Change
The transition from the monsoon (which officially withdrew recently) to the post-monsoon phase is marked by the increasing dominance of Westerly disturbances originating from the Mediterranean Sea. When these systems pass over the subcontinent, they bring moisture and unstable weather, resulting in:
Unseasonal rain in the mid and high hills.
Snowfall in the higher Himalayas, especially in Western Nepal.
This system is a key factor in Nepal’s early winter weather, causing the drop in nighttime temperatures and adding moisture to the drying post-monsoon air.
For more: Nepal Weather Forecast Today Oct 22