At lower elevations huge tracts of virgin forests give shelter to many different species of animals and birds. For a truly different insight into Nepal trekking the far west could be the answer for you. Days are usually sunny and clear and light clothing is adequate until reaching the higher elevations of about 4500 metres. Nights are cool to cold but overnight temperatures generally do not go much below freezing point. The Spring season of March through to May is famous for its' display of flowers particularly the Rhododendrons which colour the hill sides with a rich array of colours.
Autumn sees a fresh green tinge to the countryside following the rains of the monsoon.
During early autumn there may be the occasional rain in the late afternoon but the clouds associated with this can produce the most spectacular sunsets. The winter season from December through to the beginning of March sees the weather become progressively colder. The days are generally clear but you can expect snowfalls to close the higher passes making traditional treks such as the Annapurna and Manaslu circuits as well as Everest Base Camp a risky proposition. Trekkers during the winter, however, will be rewarded with crystal clear skies and wonderful views of the mountains. The summer season is the monsoon season.