Why trust this guide?
This article keeps the decision near the top, separates planning guidance from changing conditions and points you back to the complete internal library.
Browse the full Manaslu Circuit library →December requires separate planning for the warm Budhi Gandaki corridor and the exposed upper route. Early December can remain crossable after a dry autumn; later winter storms, hard ice and lodge closure make the pass increasingly uncertain.
Lower-valley daytime and night conditions
Machha Khola–Deng afternoons may reach 12–20°C, but nights fall toward 3–8°C and shaded trail stays cold.
Samagaun and Samdo temperatures
Samagaun/Samdo commonly plans around −2 to 6°C by day and −14 to −7°C overnight. These are broad planning ranges rather than a forecast; aspect, cloud, wind and individual weather systems can move temperatures outside them.
Larkya La snow tendency
Early December can remain crossable after a dry autumn; later winter storms, hard ice and lodge closure make the pass increasingly uncertain.
Rainfall, cloud and visibility
Often dry with crisp visibility between disturbances. Snowfall frequency and persistence increase as winter establishes.
Daylight hours
About 10½ hours near the solstice, leaving the least daylight margin of the trekking year.
Crowds and lodge pressure
Low. Rooms may be easy to find in open lodges, but some kitchens and Dharamsala can close completely.
Road reliability
Usually dry, with frost in shaded sections and occasional winter-weather disruption rather than monsoon washouts.
Exact packing adjustments
Use a −15 to −20°C comfort sleeping bag, heavy down jacket, insulated waterproof gloves, face protection, insulated water storage, gaiters and traction based on current reports.
Compared with the month before and after
Colder and less serviced than November; January has similarly short days and typically deeper, more persistent winter conditions.
Useful answers
Frequently asked questions
Should I confirm this before departure?
Yes. Road, trail, lodge, permit and weather conditions can change; confirm the current situation with the guide.
Is flexibility necessary?
Yes. Keep a buffer for weather, health and road disruption rather than forcing a fixed schedule.
Sources and fact-checking
Rules, prices, access, weather and local procedures can change. Reconfirm current conditions before travel.
Keep planning internally
Ready for the next decision?
Move through the complete Manaslu Circuit library and keep the route, season and preparation details together.
Community discussion
Have a question about this guide?
Ask about the route, cost, timing or practical details and compare notes with other travellers. An approved account is required before you can post.
New accounts are reviewed by an administrator before discussion access is enabled.