The short answer
Temperature drops by roughly six degrees for every thousand metres you climb, so a hot Terai afternoon can become freezing at a high pass in the same day of travel. Most rain falls in the monsoon months between June and September, with the Pokhara area among the wettest and Mustang among the driest.
Plan clothes by altitude and season, not by the date alone. Winter brings cold clear days and some rain in the western hills, and spring and autumn are the best seasons for views. Always carry a warm layer and rain protection for mountain trips.
Key facts
- Lapse rate
- About 6 degrees per 1,000 m
- Monsoon
- June to September
- Wettest
- Pokhara area
- Driest
- Mustang
How it works
- Check the altitudeOf each stop.
- Check the seasonMonsoon or dry.
- Pack in layersWarm and rain.
- Watch forecastsBefore a flight or trek.
Insider tip
Layer clothing so you can adapt through the day.
Avoid this
Do not assume Kathmandu's weather applies to the mountains.
Related questions
Is Mustang dry?
Yes; it lies in the rain shadow.
When is the best time?
Autumn and spring.
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