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Intelligence
Season & Weather Guide
Best Time for Shilla Peak Expedition — Month-by-Month Guide
Summit Window
When is it climbable?
Summit Weather Window
Minimal in summer
Alpine Start
01:00 AM – 09:00 AM
To traverse the loose scree and snow couloirs while they are frozen tight to avoid rockfall.
Conditions by Month
Jul
Lightning Risk
August
Located in the Spiti rain shadow, the best time to attempt this route is during the peak summer months (July-August) when the rest of the Himalayas are flooded. May-June and September-October are also viable but colder.
Season at a Glance
Editor's Notes
May to October offers the most favorable weather, though high Himalayan conditions remain unpredictable.
Month by Month
What each month looks like
January
Conditions
Extreme winter cold. Deep snow blockage.
Crowds
none
Sub-zero extreme temperatures and heavy snow accumulation.
Closed. Extreme winter conditions.
February
Conditions
Extreme winter cold. Deep snow blockage.
Crowds
none
Sub-zero extreme temperatures and heavy snow accumulation.
Closed. Extreme winter conditions.
March
Conditions
Extreme winter cold. Deep snow blockage.
Crowds
none
Sub-zero extreme temperatures and heavy snow accumulation.
Early season. Deep snow accumulations.
April
Conditions
Deep unconsolidated snow.
Crowds
none
Deep snow accumulation and high avalanche risk on the summit ridge.
Early season. Deep snow accumulations.
May
RecommendedConditions
Prime pre-monsoon window. Good snow stability.
Crowds
low
Prime pre-monsoon window. Good snow stability.
June
RecommendedConditions
Prime pre-monsoon window. Good snow stability.
Crowds
low
Prime pre-monsoon window. Good snow stability.
July
RecommendedConditions
Peak season in rain shadow. Stable skies.
Crowds
low
Peak season in rain shadow. River crossings swell.
August
RecommendedConditions
Peak season in rain shadow. Stable skies.
Crowds
low
Peak season in rain shadow. River crossings swell.
September
RecommendedConditions
Crystal clear skies. Best visibility of the year.
Crowds
low
Crystal clear skies. Best visibility of the year.
October
RecommendedConditions
Crystal clear skies. Cold.
Crowds
low
Crystal clear skies. Best visibility of the year.
November
Conditions
Winter setting in.
Crowds
none
Sub-zero extreme temperatures and severe jet stream impact.
Winter setting in. Sub-zero temperatures rapid.
December
Conditions
Extreme winter cold. Deep snow blockage.
Crowds
none
Sub-zero extreme temperatures and heavy snow accumulation.
Closed. Extreme winter conditions.
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