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Seasonal Overview

August and September provide the most reliable windows for this double-summit expedition. August offers optimal hard snowpack and maximum weather stability across both peaks, while September provides crisp visibility but colder recovery nights.

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Season Selection

Key point

Book for the first two weeks of August. This gives you the best odds of a stable 5-day weather window to complete both summits.

Season at a Glance

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Recommended
Open / Shoulder
Closed / No data

Month-by-Month Trail Guide

January

Conditions

Extreme winter conditions.

Crowds

none

Sub-zero temperatures and impassable deep snow.

-36C to -21CSnow: Very HighSky Clarity:

Closed. Extreme winter conditions.

February

Conditions

Extreme winter conditions.

Crowds

none

Sub-zero temperatures and impassable deep snow.

-34C to -19CSnow: Very HighSky Clarity:

Closed. Extreme winter conditions.

March

Conditions

Deep unconsolidated snow.

Crowds

none

Extreme cold and deep unconsolidated snow.

-24C to -9CSnow: HighSky Clarity:

Early season. Deep snow accumulations.

April

Conditions

Deep unconsolidated snow.

Crowds

none

High avalanche risk and unstable snowpack.

-20C to -5CSnow: HighSky Clarity:

Early season. Deep snow accumulations.

May

Conditions

Unstable conditions for double summit.

Crowds

none

Deep unstable snow and high avalanche risk on steep slopes.

-16C to -1CSnow: MediumSky Clarity:

Prime pre-monsoon window. Good snow stability.

June

Conditions

Soft snowpack on both summits.

Crowds

none

Dangerously soft snow rendering a double summit too risky.

-13C to 2CSnow: MediumSky Clarity:

Prime pre-monsoon window. Good snow stability.

July

Conditions

Soft snow on the second summit day.

Crowds

none

Soft snow on the second summit day increasing fatigue and objective hazard.

-11C to 0CSnow: LowSky Clarity:

Peak season in rain shadow. River crossings swell.

August

Recommended

Conditions

Optimal. Hard snowpack on both summits. Maximum weather stability.

Crowds

low

-12C to -1CSnow: LowSky Clarity:

Peak season in rain shadow. River crossings swell.

September

Recommended

Conditions

Good conditions but cold recovery nights between summits.

Crowds

low

-16C to -3CSnow: LowSky Clarity:

Crystal clear skies. Best visibility of the year.

October

Conditions

High jetstream winds.

Crowds

none

Severe jet stream impact and extreme cold making recovery impossible.

-21C to -7CSnow: LowSky Clarity:

Crystal clear skies. Best visibility of the year.

November

Conditions

Winter onset.

Crowds

none

Sub-zero extreme temperatures and severe jet stream winds.

-26C to -12CSnow: HighSky Clarity:

Winter setting in. Sub-zero temperatures rapid.

December

Conditions

Extreme winter conditions.

Crowds

none

Sub-zero temperatures and impassable deep snow.

-35C to -20CSnow: Very HighSky Clarity:

Closed. Extreme winter conditions.

Weather Windows & Wind Patterns

Photography & Light Conditions

Best Light Season

Night Skies

Lens Recommendation

Timing makes or breaks a trek. Send this to your group before you decide.

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