Trekking Seasons
Trekking in Nepal is possible at any season round the year, depending on the area of interest to visit. The most popular seasons for trekking are autumn and spring.
Autumn (Sep-Nov- October & November) : These are really the best months - offering excellent weather and tantalizing mountain views.
Winter (Dec-Feb) : This season is noted for occasional snowfall only at higher elevations and higher passes on the trekking route. We therefore recommend trekking at lower elevations, generally below 3000 meters especially around Kathmandu valley, Pokhara & Gorkha.
Spring (Mar-May) : During the spring days and nights are milder but still colder in the mountain regions. Different varieties of wild flowers decorate the natural beauties of hillside. Specially, varieties of rhododendrons make the hillside a haunting paradise and above 4000meter the mountain views are excellent. Trekkers get a great opportunity to see the traditional way of farming in hills in this season.
Summer (Jun-Aug) :
This is the monsoon season. During these months Nepal experiences its most heavy rainfall. Trekking at this time is tough in hillsides due to flood and possible landslides. But, trekking is possible in the Upper Mustang and Dolpo areas. This season is blessed for the keen botanist as the higher valleys and meadows blossom with flowers and lush vegetation. Insect repellent is a nice addition to your list to bring.