Trekking in Nepal can be undertaken throughout the year depending on the region. Basically we have four seasons in Nepal. Each season has its distinct attraction to offer. The seasons are classified as follows:

AUTUMN (SEPT-NOV) - This season offers excellent weather and best visibility. This is the best time to trek in Nepal Himalayas. Days are clear with blue sky, clear visibility and temperature is best by this time as well.

WINTER (DEC-FEB) - This season is noted for occasional snowfall only at higher elevations. Hence it is ideal for trekking at lower elevations, generally below 3000 meters.
 

SPRING-(MARCH- MAY) - This is another best seasons to trek to Nepal Himalayas. Trekking in spring is particularly lovely as the mountain slopes are covered with beautiful and colorful flowers and still have plenty of high snow to enhance your photos. The temperature is quite moderate and the mountain views are excellent.


SUMMER (JUN- AUG) - This is the favorite season to trek in the rain shadow areas like Upper Mustang, Dolpo and Kailash. This season is also recommended for forest researchers and botanist.