Nepal is the country of extremes. Weather and climate of Nepal varies with its topography and altitude. It ranges from tropical to arctic. The low-land plains of the Terai can have tropical temperatures and the Himalayas can get to zero temperatures. The Terai region, which lies in the tropical southern part of the country, has a hot and humid climate. The hill, mid-hills and particularly the Kathmandu valleys are pleasant with warm summers and cool winters almost all the year round. The northern mountain region, around an altitude above 3300 m has an alpine climate with a considerably lower temperature in winter as can be expected but the sun can blaze you during the day, even in the mountains.
Monsoon in Nepal is not the typical monsoon of Asia. Rains usually occur during the night-time and early morning mountain views can even be had in this season. The rainy season lasts from July to August. Sub-tropical climate and alpine climate areas are dissected by deep valleys, formed by run-off from the monsoon and snow melt-water. Temperature ranges between maximum of 37 and minimum of 6 degree Celsius in the plains, 28 and 2 degree Celsius in the Kathmandu valley and 16 and 6 degree Celsius in the mountains.

Autumn (Sept-Nov):

This season offers excellent weather and tantalizing mountain views.

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):

Different varieties of wild flowers, specially the rhododendrons make the hillside above 5000 meters a haunting paradise during this season. It is mildly warm at lower elevations and at higher elevation over 4000 meters the mountain views are excellent and temperature is quite moderate.

Summer (Jan-Aug):


Summer months, continues up to mid September making travel wet and warm. These times are blessed for the keen botanist as the higher valleys and meadows blossom with flowers and lush vegetation