There are positives and negatives to visiting Nepal at any time of the year. Here is an overview of what is best at what time of the year.
Spring ( March-May)
- A great time for general touring
- A little less busy than the autumn trekking season
- Clear days and warm temperatures
- Great for rhododendrons and spring flowers
- A great season for mountain trekking
- In the mountains, blue skies and snow-capped peaks are common scenes
Summer (June-August)
- Low/shoulder season
- The best time for Upper Mustang and the Tibetan Plateau (anywhere in the rain shadow areas)
- Off-peak – a good time for touring of World Heritage Cultural sites, Kathmandu, Lumbini, Pokhara etc
- A good time for visiting villages (rice planting and lush fields)
- High altitude areas have wildflowers in flower (but may be difficult to access in some areas)
- Monsoon views of hills and mountains are very dramatic with clouds in the picture but if you are after snow-capped peaks and clear blue skies this is not the season.
- Views of snow-capped peaks not common due to low cloud cover
- Remote roads can be difficult or impassable when wet
- Terai wildlife zones (such as Chitwan) not possible at this time of the year
Autumn (Sept-Nov)
- High season
- The busiest season for trekking
- Weather is generally perfect with clear skies and snow-capped peaks commonly seen
- In the mountains autumn, colored trees dot the hillsides
- It’s festival time in the cities and villages with Dashain and Tihar back to back in October
Winter (Dec-Feb)
- Low season
- It’s pretty cold in Kathmandu and the mountains at this time of the year
- In the lowlands and mid hills, haze is common at this time of the year
- In the mountains, it is very cold and snowfall is common
- Potentially this is a good time of year for trips to the Terai wildlife areas (much quieter but still dry with milder weather)
- Mountain areas although cold are beautiful with clear skies and snow-capped peaks, but at high altitude passes and high areas will be with limited access due to snowfall.