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Season & Weather Guide
September. The monsoon washes the sky clean, and the melted snow exposes the hidden crevasses on the Khatling glacier, making it safer to navigate.
Seasonal Verdict
Due to the extreme altitude and glacial crossings, the trek has a very narrow window: pre-monsoon (late May to June) and post-monsoon (September to early October). Outside these months, the pass is impassable.
Season at a Glance
Editor's Notes
Month by Month
Conditions
Closed. Buried under massive winter snow.
Crowds
none
Deep snow accumulation, extreme cold, or closed trail conditions
Closed. Complete winter blackout.
Conditions
Closed.
Crowds
none
Deep snow accumulation, extreme cold, or closed trail conditions
Closed.
Conditions
Closed.
Crowds
none
Deep snow accumulation, extreme cold, or closed trail conditions
Closed.
Conditions
Closed.
Crowds
none
Deep snow accumulation, extreme cold, or closed trail conditions
Closed.
Conditions
Late May is possible for experienced climbers. Expect heavy, deep snow on the pass and frozen lakes.
Crowds
medium
Late May is possible for experienced climbers, but the lakes will be frozen and the pass will have deep snow.
Conditions
Prime season. The lower valleys are green, and the snow on the pass is stable enough for crossing.
Crowds
medium
Prime season. The weather window before the monsoon hits.
Conditions
High risk. Heavy monsoon rains trigger landslides in the Bhilangana valley. Crevasses on the Khatling glacier open up and become hidden by fresh snow.
Crowds
medium
High risk. Heavy monsoon rains in the lower valleys cause landslides. Crevasses become hidden.
Conditions
High risk. Monsoon continues. Not recommended.
Crowds
none
Monsoon precipitation and landslide / slippery trail hazards
High risk. Monsoon continues.
Conditions
The absolute best month. The sky is crystal clear, the glacier ice is exposed (making crevasses visible), and the weather is stable.
Crowds
medium
The absolute best month. The glacier is exposed, making navigation safer, and skies are clear.
Conditions
Early October is excellent, but extremely cold. By late October, the first major winter storms shut the pass down.
Crowds
medium
Early October is excellent but brutally cold. By late October, the pass is too dangerous.
Conditions
Closed.
Crowds
none
Deep snow accumulation, extreme cold, or closed trail conditions
Closed.
Conditions
Closed.
Crowds
none
Deep snow accumulation, extreme cold, or closed trail conditions
Closed.
Plan Your Trek:
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Step 3: Route Intelligence
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