Temperature
Pleasant by day, brisk at night.
Jomsom is most comfortable in autumn. Summers are mild and winters are cool. Humidity is usually low.

Pleasant by day, brisk at night.
One of the wettest months.
Cloudier spells limit sunshine.
It rarely feels hot, though humidity can be noticeable during rainy periods.
In August, afternoons feel about 66° and nights feel near 58°.
Mostly cloudy skies.
August late afternoons are around 63°F, easing to about 61°F in early evening.
Calm winds are typical in August.
Want a side-by-side climate view? Compare Jomsom with El Chalten.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology