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Season & Weather Guide
June (pre-monsoon) and September (post-monsoon) are the only viable windows.
Pass Window
Early Start
02:00 AM – 11:00 AM
Conditions by Month
Jun
Sep
The window to cross this pass is incredibly small. May/June offers snow-filled gullies which act as bridges over crevasses. September provides cold, clear, crevasse-exposed safety where ice-axes are essential.
Season at a Glance
Editor's Notes
Late May to Mid-June is ideal because the snow 'bridges' the lethal crevasses. Going in September requires a guide with expert glacier-reading skills to avoid dropping into one.
Month by Month
Conditions
Deep winter. The high pass is completely buried and impassable.
Crowds
none
Impassable winter snowpack.
Closed. Extreme winter conditions.
Conditions
Deep winter. The high pass is completely buried and impassable.
Crowds
none
Impassable winter snowpack.
Closed. Extreme winter conditions.
Conditions
Deep winter. The high pass is completely buried and impassable.
Crowds
none
Impassable winter snowpack.
Early season. Deep snow accumulations.
Conditions
Shoulder season. Highly unstable snow conditions and narrow weather windows.
Crowds
none
Unstable snow conditions.
Early season. Deep snow accumulations.
Conditions
Late May sees early attempts. Heavy snow navigation required.
Crowds
low
Prime pre-monsoon window. Good snow stability.
Conditions
Prime summer trekking. Snow bridges are navigable.
Crowds
low
Prime pre-monsoon window. Good snow stability.
Conditions
Monsoon season. Extreme objective hazards including rockfall, avalanches, and swollen rivers.
Crowds
none
Severe monsoon hazards.
Monsoon danger. Landslides and severe rains.
Conditions
Monsoon season. Extreme objective hazards including rockfall, avalanches, and swollen rivers.
Crowds
none
Severe monsoon hazards.
Monsoon danger. Landslides and severe rains.
Conditions
The safest window. Crevasses are visible and massive blue ice is exposed.
Crowds
low
Crystal clear skies. Best visibility of the year.
Conditions
Shoulder season. Highly unstable snow conditions and narrow weather windows.
Crowds
none
Unstable snow conditions.
Crystal clear skies. Best visibility of the year.
Conditions
Shoulder season. Highly unstable snow conditions and narrow weather windows.
Crowds
none
Unstable snow conditions.
Winter setting in. Sub-zero temperatures rapid.
Conditions
Deep winter. The high pass is completely buried and impassable.
Crowds
none
Impassable winter snowpack.
Closed. Extreme winter conditions.
Drones not permitted
Extreme cold drains battery.
Plan Your Expedition:
Compare routes side-by-side to find the perfect match for your fitness, dates, and budget.
Timing makes or breaks a trek. Send this to your group before you decide.
Step 3: Route Intelligence
Now see exactly how the route unfolds day by day, including terrain types and daily altitude profiles.
Explore the Itinerary