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Season & Weather Guide
Best Time for Black Peak (Kalanag) Expedition — Month-by-Month Guide
June is the gold standard for consolidated snow stability, while September offers the best visual clarity despite highly technical 'bare ice' conditions.
Summit Window
When is it climbable?
Summit Weather Window
High in October.
Alpine Start
12:00 AM – 10:00 AM
Avoid rockfall and serac collapse as the sun hits the face.
Forecast Source
Meteoblue
Use Meteoblue for Sankri and adjust for altitude.
Conditions by Month
May
Sep
Lightning Risk
July & August
May-June provides the primary window due to consolidated snow bridging crevasses and the bergschrund. September-October offers clear skies, but bare ice makes the 70-degree headwall significantly more challenging.
Season at a Glance
Editor's Notes
June provides softer, consolidated snow which makes kicking steps into the 70-degree headwall much easier.
September offers crystal clear skies, but the snow melts away leaving rock-hard blue ice, increasing the technical difficulty significantly.
Month by Month
What each month looks like
January
Conditions
Extreme winter conditions.
Crowds
none
Extreme winter cold and heavy snow accumulation make the glacier and 70-degree headwall impassable.
Closed. Extreme winter conditions.
February
Conditions
Extreme winter conditions.
Crowds
none
Extreme winter cold and heavy snow accumulation make the glacier and 70-degree headwall impassable.
Closed. Extreme winter conditions.
March
Conditions
Deep unconsolidated snow.
Crowds
none
High avalanche risk on the approach and summit headwall due to deep snow.
Early season. Deep snow accumulations.
April
Conditions
Early season with lingering deep snow.
Crowds
none
Deep snow cover masks crevasses on the Bandarpunch Glacier.
Early season. Deep snow accumulations.
May
RecommendedConditions
Pre-monsoon window opening. Consolidated snow helps bridge the bergschrund.
Crowds
low
Prime pre-monsoon window. Good snow stability.
June
RecommendedConditions
Prime conditions. Firm snow supports fixed ropes and jumaring on the 70-75 degree headwall.
Crowds
low
Prime pre-monsoon window. Good snow stability.
July
Conditions
Monsoon downpours and low visibility.
Crowds
none
Heavy rain, rockfall risk, and lightning exposure on the summit ridge.
Monsoon danger. Landslides and severe rains.
August
Conditions
Monsoon downpours and low visibility.
Crowds
none
Heavy rain, rockfall risk, and lightning exposure on the summit ridge.
Monsoon danger. Landslides and severe rains.
September
RecommendedConditions
Post-monsoon window. Clear skies and stable weather for the glacier push.
Crowds
low
Crystal clear skies. Best visibility of the year.
October
RecommendedConditions
Clear skies, but high winds and bare ice on the headwall.
Crowds
low
Crystal clear skies. Best visibility of the year.
November
Conditions
Winter onset with rapid temperature drops.
Crowds
none
Severe cold and unstable fresh snow on steep pitches.
Winter setting in. Sub-zero temperatures rapid.
December
Conditions
Extreme winter conditions.
Crowds
none
Extreme winter cold and heavy snow accumulation make the glacier and 70-degree headwall impassable.
Closed. Extreme winter conditions.
Photography & Light Conditions
Sunrise Spot
Summit Ridge
Recommended Lenses
Astrophotography
Drones not permitted
Not permitted in National Park without special forest dept clearance.
Extreme cold depletes batteries instantly above BC.
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Step 3: Route Intelligence
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Now see exactly how the route unfolds day by day, including terrain types and daily altitude profiles.
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