Weather and Climate in Nepal

Climate & Trekking Seasons of Nepal

The geographical latitude of Nepal ranges from 26° to 31°N, thus providing everything from sub-tropical southern plains to alpine northern Himalayas. Four distinct seasons largely govern the trekking and travel conditions of the country.

Seasons and Conditions in Nepal

Autumn (September – November)

  • Best trekking season with mild temperatures, clear skies, and exquisite views of the mountains.
  • The landscapes become golden, thus providing good photo opportunities.
  • The ever-popular trekking routes of Everest, Annapurna, and Langtang become overcrowded with trekkers.
  • Nights would become colder & temperature at high altitude can fall below freezing.

Winter (December – February)

  • Stable weather with clear skies for lower altitude trekking.
  • Heavy snowfall in higher altitude regions makes it hard for trekking.
  • Great to visit Kathmandu Valley and Terai as those places would not be experiencing snow.
  • Very cold nights with possible snowstorm in the Himalayas.

Spring (March – May)

  • Another peak trekking season—mild temperatures, clear sky, and stunning scenery.
  • Trekking trails abound with blooming rhododendrons, jasmine, and pine trees.
  • The best option for high-altitude trekking, peak climbing, and expeditions.
  • The lower altitudes can be warm and sometimes hot. 

Summer & Monsoon (June – August)

  • Constant rain and cloudy skies create humid conditions where most trails turn muddy and slippery.
  • Leeches abound in the forests, while clouds obscure mountain views.
  • The rain-shadow areas of Mustang and Dolpo, however, remain dry and great trekking zones.
  • This season is special because of the greener pastures, blooming flowers, and active wildlife.

Trekking Condition by Altitude

Low-altitude treks (Terai, Kathmandu Valley, Chitwan): Great throughout the year, except during the Monsoon rainfall. 
Trekking in mid-altitude battles (Annapurna, Langtang, Manaslu): Best in Autumn or Spring. 
High-altitude treks are best in autumn, heavy snow during winter, and the monsoon affects most areas except Mustang & Dolpo.

For an unforgettable experience, plan your trek based on weather conditions and intended adventure type!