The weather during this trek completely varies differently in different seasons and the mountain weather is rather difficult to predict. The snow-capped Himalayan region is never really hot, not even during the summer season. Spring and fall seasons are generally considered to be the best times for doing this trek. Although it is generally cooler during the night time, the days are comparatively warmer, especially at low elevations. However, winters are relatively colder during the night time and the days can be warm if the sun is out. It is always important to make sure that you stay warm and dry in almost any weather conditions during this trek.