Trekking in Nepal generally known to best as two seasons after the winter and before the winter. During the Autumn and Spring season, the weather is clear enough to view the mountains and beautiful scenes. Nepal is the trekker's paradise so if you have limited time to travel, you can also visit Nepal during winter time.
Generally, the days are clear in winter season in Nepal. December, January and February months falls during this time. In high altitude, weather is cool and even heavy snowfall with risk winds and colder night. So, if you are planning for trekking holidays during winter, lower elevations below 3500m would be best.
Winter is a great time to trek one or two week lower and mid altitude trails, where the temperature is pleasant. During this period, there are less number of trekkers on the trail. Special interest trek is best during the spring season i.e. starts late February. The colorful forest of Rhododendron which is the national flower of Nepal also blooms at this time of the year. The nature will mesmerize you with the orchids, also different species of birds on the route while you trek during this season.
Ghorepani Poon Hill Trek, Annapurna Circuit Short Trek, Annapurna Base Camp Short Trek, Everest Base Camp Short Trek, Langtang Valley Trek and around Kathmandu valley treks are the best trekking trails during winter in Nepal.