The trekking seasons in Nepal are categorized into four categories – Summer, Spring, Autumn, and Winter. Generally, Spring and Autumn and considered as the best seasons for trekking. They are the peak trekking seasons in Nepal. The winter is very cold and the summer marks monsoon, therefore, these seasons are not so recommended for trekking purpose. However, each season has its own pros and cons. Considering your purpose of travelling to Nepal, you can select which season suits you the most.
Autumn season is the best season to visit Nepal. The weather is very clear that offers some wonderful views of mountains and other sceneries. The clear sky, moderate temperature perfect for a walk and outstanding views of mountains and surroundings are the highlighted features of trekking in this season. Ideally, it is best in terms of weather condition, visibility, sky clarity, and perfect mountain views.
Winter season (December to February)
The winter is very cold up there in the high altitudinal regions. There is thick snow and the weather is unbearably cold. Walking in those areas with heavy snow is extremely difficult and you may not be able to sustain cold. That is why winter is not so preferred for trekking in Nepal. However, some low elevation trekking routes and tours may be suitable to opt for during this season.
Spring season (March to May)
Spring season is also a peak season for trekking in Nepal. The temperature is perfect i.e. neither too hot nor too cold. The best part of trekking in this season is you will be showered with the flower blossom in the forests of your trekking route. It is a flowering season and you may find the whole forest covered with a flower blossom. The different colored rhododendron makes the whole environment vivid and vibrant. Apart from these, you will also have some awesome views of mountains during this season. The sky is clear with phenomenon visibility.
Summer in Nepal marks the starting of the monsoon season. Though the temperature is warm, the surrounding is wet. Due to the constant rainfall, the trekking route is wet and slippery which makes walking difficult. The trekking routes and jungle areas are full of leeches which would be a disastrous thing to experience. Apart from this, the patches of clouds in the sky ruin visibility. Many times, one may not be able to get the views of mountains even from the vantage points in Nepal. However, if you are a researcher on floras/ faunas or a botanist, this season might be the most favorable one to conduct any kind of research activities.
Based on these pros and cons, you can select the trekking seasons suitable for you!