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Season & Weather Guide
May-June and Sept-Oct are ideal. Avoid the monsoon months (July-August) due to landslides.
Seasonal Verdict
The trek is best undertaken during two specific windows: the pre-monsoon months of May and June when the weather is clear and meadows are blooming, and the post-monsoon months of September and October for the sharpest, clearest views of the Nanda Devi range.
Season at a Glance
Editor's Notes
Month by Month
Conditions
Deep winter. The trail and the lake are buried under heavy snow. Temperatures drop to -15°C.
Crowds
none
Heavy snow and extreme cold.
Trail closed due to deep winter snow.
Conditions
Peak winter conditions. High risk of avalanches on steep sections.
Crowds
none
Avalanche risk and impassable trails.
Trail closed.
Conditions
Snow begins to melt at lower altitudes, but the higher camps (Kantala and Rishikund) remain inaccessible.
Crowds
none
Deep snow near the lake.
Higher camps inaccessible.
Conditions
Late April may see the opening of the lower trails, but the lake is usually still frozen and surrounded by slushy snow.
Crowds
none
Unstable snowpack.
Lake is frozen, trails can be treacherous with melting snow.
Conditions
Excellent trekking conditions. The weather warms up, and the meadows start turning green. Some residual snow may be present near the lake.
Crowds
low
Great time to trek. Expect mild snow near the lake.
Conditions
The prime summer window. Alpine flowers are in full bloom. Expect warm days but occasional afternoon pre-monsoon showers.
Crowds
low
Lush meadows and flowers. Watch out for pre-monsoon showers.
Conditions
Monsoon arrives. The trail becomes muddy, leech-infested, and highly prone to landslides.
Crowds
none
Heavy rain, landslides, zero visibility.
Avoid. Trail is prone to landslides.
Conditions
Peak monsoon. Rivers are swollen, making crossings dangerous. Views of peaks are completely obscured by clouds.
Crowds
none
Dangerous trail conditions.
Avoid. Heavy monsoon rains.
Conditions
Post-monsoon clearing. The skies are crystal clear, offering the best views of Nanda Devi. The meadows are lush green.
Crowds
low
Best season. Clear skies and perfect views of Nanda Devi.
Conditions
Stunningly clear views and stable weather, though temperatures begin to drop sharply below freezing at night.
Crowds
low
Very cold at night, but the views are spectacular.
Conditions
Early winter sets in. It is extremely cold, and the first snowfalls of the season can block the trail.
Crowds
none
Extreme cold and risk of trail closure.
Too cold for standard trekking. High risk of early snowfall blocking the route.
Conditions
The trail is officially closed due to deep snow and freezing temperatures.
Crowds
none
Winter conditions.
Trail closed.
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