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Season & Weather Guide
Best Time for Rumtse Tso Moriri Trek — Month-by-Month Guide
July to September. The perfect summer escape, as Ladakh's rain-shadow geography shields the Changthang from the monsoon rains.
Seasonal Verdict
When should you go?
Located in the trans-Himalayan rain shadow, the Changthang plateau receives almost no monsoon rain, making the summer months the ideal time to trek. Outside of this brief window, the region is locked in deep, lethal winter conditions.
Season at a Glance
Editor's Notes
Month by Month
What each month looks like
January
Conditions
Deep winter. The plateau is buried in snow and temperatures plummet to -40°C.
Crowds
none
Lethal cold and inaccessible passes.
Inaccessible.
February
Conditions
Peak winter. Trekking is impossible.
Crowds
none
Extreme winter conditions.
Inaccessible.
March
Conditions
Heavy winter conditions persist across the Changthang.
Crowds
none
Deep snowpack.
Deep snow blocks all passes.
April
Conditions
Spring in Leh, but the 5,000m+ passes of the trek remain heavily snowbound and avalanche-prone.
Crowds
none
Unstable snow conditions.
Unstable snow conditions. High avalanche risk.
May
Conditions
Late May may see initial attempts, but expect deep snow navigation on all seven passes.
Crowds
none
Lingering snowpack.
Heavy snow on the passes makes navigation extremely difficult.
June
RecommendedConditions
Early summer. Snow clears from the lower camps. Days are sunny but glacial streams are extremely swollen and dangerous to cross.
Crowds
low
Season opens. Expect significant snow on passes and very high, dangerous river crossings.
July
RecommendedConditions
Prime trekking season. Excellent, clear weather. The high desert blooms with sparse but colorful alpine flora.
Crowds
low
Prime season. Excellent clear weather in the rain-shadow of Ladakh.
August
RecommendedConditions
Peak season. Warmest days, clear trails, and excellent visibility. River crossings must be done early in the morning.
Crowds
low
Prime season. Valleys have sparse green patches. Cross rivers early.
September
RecommendedConditions
Post-summer. Temperatures drop sharply, especially at night. Skies are exceptionally clear, offering the best views.
Crowds
low
The best month. Crystal clear skies, lower river levels, but freezing nights.
October
Conditions
Early winter sets in. Extreme cold at night (-15°C to -20°C). High risk of pass closures due to sudden snowstorms.
Crowds
none
Extreme cold and early snowstorms.
Very cold. High risk of passes closing early due to snowstorms.
November
Conditions
Winter conditions. Trekking operations cease entirely.
Crowds
none
Extreme cold.
Trekking operations closed.
December
Conditions
Deep winter. Inaccessible.
Crowds
none
Winter conditions.
Inaccessible.
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