Pass Window

When is it climbable?

Pass Crossing Window

Early Start

02:00 AM – 11:00 AM

Conditions by Month

Jun

25 km/h

Sep

30 km/h

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

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Peak
Recommended
Shoulder
Closed

Editor's Notes

Editor's Insight

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

What each month looks like

January

Pass Closed

Conditions

Deep winter. The high pass is completely buried and impassable.

Crowds

none

Impassable winter snowpack.

-26C to -11CSnow: Very HighSky Clarity:

Closed. Extreme winter conditions.

February

Pass Closed

Conditions

Deep winter. The high pass is completely buried and impassable.

Crowds

none

Impassable winter snowpack.

-24C to -9CSnow: Very HighSky Clarity:

Closed. Extreme winter conditions.

March

Pass Closed

Conditions

Deep winter. The high pass is completely buried and impassable.

Crowds

none

Impassable winter snowpack.

-19C to -4CSnow: HighSky Clarity:

Early season. Deep snow accumulations.

April

Pass Closed

Conditions

Shoulder season. Highly unstable snow conditions and narrow weather windows.

Crowds

none

Unstable snow conditions.

-15C to 0CSnow: HighSky Clarity:

Early season. Deep snow accumulations.

May

Pass Open

Conditions

Late May sees early attempts. Heavy snow navigation required.

Crowds

low

-11C to 4CSnow: MediumSky Clarity:

Prime pre-monsoon window. Good snow stability.

June

Pass Open

Conditions

Prime summer trekking. Snow bridges are navigable.

Crowds

low

-8C to 7CSnow: MediumSky Clarity:

Prime pre-monsoon window. Good snow stability.

July

Conditions

Monsoon season. Extreme objective hazards including rockfall, avalanches, and swollen rivers.

Crowds

none

Severe monsoon hazards.

-6C to 5CSnow: LowSky Clarity:

Monsoon danger. Landslides and severe rains.

August

Conditions

Monsoon season. Extreme objective hazards including rockfall, avalanches, and swollen rivers.

Crowds

none

Severe monsoon hazards.

-7C to 4CSnow: LowSky Clarity:

Monsoon danger. Landslides and severe rains.

September

Pass Open

Conditions

The safest window. Crevasses are visible and massive blue ice is exposed.

Crowds

low

-11C to 2CSnow: LowSky Clarity:

Crystal clear skies. Best visibility of the year.

October

Conditions

Shoulder season. Highly unstable snow conditions and narrow weather windows.

Crowds

none

Unstable snow conditions.

-16C to -2CSnow: LowSky Clarity:

Crystal clear skies. Best visibility of the year.

November

Pass Closed

Conditions

Shoulder season. Highly unstable snow conditions and narrow weather windows.

Crowds

none

Unstable snow conditions.

-21C to -7CSnow: HighSky Clarity:

Winter setting in. Sub-zero temperatures rapid.

December

Pass Closed

Conditions

Deep winter. The high pass is completely buried and impassable.

Crowds

none

Impassable winter snowpack.

-25C to -10CSnow: Very HighSky Clarity:

Closed. Extreme winter conditions.

Photography & Light Conditions

Drones not permitted

Extreme cold drains battery.

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