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Intelligence

Season & Weather Guide
June and September are the only logical windows for the full loop.
Pass Window
May-June and September-October. Avoid monsoon due to landslide-prone roads to Munsiyari.
Season at a Glance
Editor's Notes
May to June offers blooming alpine meadows, while September to October provides crisp, clear visibility of the Nanda Devi massif.
Month by Month
Conditions
Deep winter. The high pass is completely buried and impassable.
Crowds
none
Impassable winter snowpack.
Closed. Extreme winter conditions.
Conditions
Deep winter. The high pass is completely buried and impassable.
Crowds
none
Impassable winter snowpack.
Closed. Extreme winter conditions.
Conditions
Deep winter. The high pass is completely buried and impassable.
Crowds
none
Impassable winter snowpack.
Early season. Deep snow accumulations.
Conditions
Shoulder season. Highly unstable snow conditions and narrow weather windows.
Crowds
low
Unstable snow conditions.
Early season. Deep snow accumulations.
Conditions
Crowds
low
Prime pre-monsoon window. Good snow stability.
Conditions
Best visibility of Nanda Devi. Meadows are lush.
Crowds
low
Prime pre-monsoon window. Good snow stability.
Conditions
Monsoon season. Extreme objective hazards including rockfall, avalanches, and swollen rivers.
Crowds
low
Severe monsoon hazards.
Monsoon danger. Landslides and severe rains.
Conditions
Monsoon season. Extreme objective hazards including rockfall, avalanches, and swollen rivers.
Crowds
none
Severe monsoon hazards.
Monsoon danger. Landslides and severe rains.
Conditions
Best air clarity. Snow-free pass crossing.
Crowds
low
Crystal clear skies. Best visibility of the year.
Conditions
Crowds
low
Crystal clear skies. Best visibility of the year.
Conditions
Shoulder season. Highly unstable snow conditions and narrow weather windows.
Crowds
none
Unstable snow conditions.
Winter setting in. Sub-zero temperatures rapid.
Conditions
Deep winter. The high pass is completely buried and impassable.
Crowds
none
Impassable winter snowpack.
Closed. Extreme winter conditions.
Sunrise Spot
Martoli Ridge
Recommended Lenses
Astrophotography
Plan Your Expedition:
Compare routes side-by-side to find the perfect match for your fitness, dates, and budget.
Timing makes or breaks a trek. Send this to your group before you decide.
Step 3: Route Intelligence
Now see exactly how the route unfolds day by day, including terrain types and daily altitude profiles.
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