The short answer
October and November give the clearest skies; March to May brings rhododendron blooms and longer days; December to February is cold but quiet at lower levels; June to September is monsoon with rain and leeches, except in rain-shadow areas like Mustang.
Key facts
- Autumn
- Oct to Nov
- Spring
- Mar to May
- Winter
- Dec to Feb
- Monsoon
- Jun to Sep
How it works
- Pick your priorityClear views, flowers, solitude or rain-shadow dryness.
- Match region to monthMustang and Dolpo suit monsoon; Everest suits autumn.
- Check the forecastWeather shifts, especially at altitude.
- Pack accordinglyLayers for dawn and dusk.
- Allow buffer daysFlights can be delayed.
The four seasons on the trail
Autumn, from October to November, brings stable weather and sharp views, with busy trails. Spring, from March to May, adds warm days and rhododendron blossoms, though views can be hazy. Winter is cold with clear skies and fewer trekkers, but snow can block high passes.
The monsoon, from June to September, is wet and cloudy, with leeches on lower trails and many views hidden. Rain-shadow areas such as Mustang and Upper Dolpo are drier and can be good choices.
Matching month and trek
For Everest and Annapurna base camps, choose autumn or spring. For high passes, avoid deep winter and the monsoon. For lower, shorter treks, winter can be pleasant with warm layers.
Book flights, permits and lodges early for October, check the forecast before you leave, and keep spare days in your schedule. Pack for the season: warm layers in winter, rain gear in spring and monsoon.
Insider tip
Book flights and permits early for October.
Avoid this
Do not trek high passes in winter without proper gear.
Related questions
Is spring or autumn better?
Autumn has clearer skies; spring has flowers and warmer days. Both are good.
Can I trek in monsoon?
Yes in rain-shadow regions or lower trails with rain gear.
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