Summit Window

When is it climbable?

Summit Weather Window

High in late September and October

Alpine Start

01:00 AM – 09:00 AM

Avoid midday winds and maximize clear views.

Forecast Source

Meteoblue

Use satellite communicators.

Conditions by Month

Aug

30 km/h
2 rain days

Sep

40 km/h
1 rain days

Lightning Risk

July

July to September is the prime window due to the Markha Valley's location in the rain-shadow. Consolidated snowpack is essential for the steep summit snow slope. June has soft, exhausting snow, and October brings dangerous jet stream winds.

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

August is the safest window. Snow is hardened from weeks of freeze-thaw cycles, making every step far more solid than the soft slush of early July.

Month by Month

What each month looks like

January

Conditions

Extreme winter conditions.

Crowds

none

Extreme winter cold and frozen, impassable approach routes.

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

Closed. Extreme winter conditions.

February

Conditions

Extreme winter conditions.

Crowds

none

Extreme winter cold and deep snow.

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

Closed. Extreme winter conditions.

March

Conditions

Deep unconsolidated snow.

Crowds

none

Extreme cold and impassable approach.

-24C to -9CSnow: HighSky Clarity:

Early season. Deep snow accumulations.

April

Conditions

Valley thawing but peak heavily corniced.

Crowds

none

Heavy cornices and avalanche risk on the summit ridge.

-20C to -5CSnow: HighSky Clarity:

Early season. Deep snow accumulations.

May

Conditions

Approach muddy and unstable snow at altitude.

Crowds

none

Unstable snow conditions on the summit push.

-16C to -1CSnow: MediumSky Clarity:

Prime pre-monsoon window. Good snow stability.

June

Conditions

Soft summit snow makes climbing exhausting.

Crowds

none

Unconsolidated, soft snow on the steep summit slope.

-13C to 2CSnow: MediumSky Clarity:

Prime pre-monsoon window. Good snow stability.

July

Recommended

Conditions

First prime window. Snow hardened in the rain-shadow.

Crowds

low

-11C to 0CSnow: LowSky Clarity:

Peak season in rain shadow. River crossings swell.

August

Recommended

Conditions

Peak season. Hardest snowpack and most stable weather.

Crowds

low

-12C to -1CSnow: LowSky Clarity:

Peak season in rain shadow. River crossings swell.

September

Recommended

Conditions

Crystal clear visibility and cold nights solidifying the snowpack.

Crowds

low

-16C to -3CSnow: LowSky Clarity:

Crystal clear skies. Best visibility of the year.

October

Conditions

High winds begin.

Crowds

none

High risk of extreme jet stream winds and fresh snowfall.

-21C to -7CSnow: LowSky Clarity:

Crystal clear skies. Best visibility of the year.

November

Conditions

Winter onset.

Crowds

none

Extreme cold and season closure.

-26C to -12CSnow: HighSky Clarity:

Winter setting in. Sub-zero temperatures rapid.

December

Conditions

Extreme winter conditions.

Crowds

none

Extreme winter cold and frozen, impassable approach routes.

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

Closed. Extreme winter conditions.

Photography & Light Conditions

Sunrise Spot

KY2 Summit

Recommended Lenses

16mm24mm70mm

Astrophotography

10/10Milky Way: jul, aug, sep

Drones not permitted

Prohibited in Hemis National Park.

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

Step 3: Route Intelligence

You've chosen a season.

Now see exactly how the route unfolds day by day, including terrain types and daily altitude profiles.

Explore the Itinerary