What's the atmosphere & Road conditions mid December mustang(mukitinath temple),pokhra,kathmandu we will planning on bike
The weather will be cool and dry in Kathmandu, slightly warmer in Pokhara and likely below freezing in Jomsom and Muktinath. The road from Pokhara to Muktinath is unsealed when you get past Beni and can be very rough in places but in winter should be free from landslides.
Muktinah: I was there for 2-3 days in both mid Dec 2012 and mid Jan 2016, as part of doing Annapurna Circuit.
At night temperatures are below freezing. During the day it was sunny and reasonably warm - we washed clothes by hand, outdoors, walked around the sacred sites at Muktinah, and sat outside for lunch. It was the same at Dzong and Kagbeni - spent 2 nights both times in Kagbeni.
There was no snow on the ground, but snow is always a risk, at any time of the year, even thought he winter is the driest period.