Nepal has four distinct seasons namely spring, summer (monsoon), autumn and winter. Spring lasts from March to mid-May where days are quite warm and late spring may experience some rain showers. Temperatures during spring hover around 22-24°C.

The summer or monsoon season sets in from late May until August or first week of September. The hills turn lush and green during this season while the temperature gets warmer, somewhere up to 30°C or sometimes more during heat waves. Trekking in Nepal is extremely unfavorable during summer as the trails become wet, muddy and slippery.

Autumn starts from September and goes until November. It gets cool with clear skies making it the most popular season for trekking in Nepal. During this season, the temperatures are just perfect with a maximum of 25°C during day and a minimum of 10°C in the cool nights. Normally, Nepal does not receive more than 2 to 3 days of rain during the whole autumn and winter months.

Winter in Nepal begins from December and goes until February. Nights get very cold with temperatures sometimes even below zero. The maximum temperature in winter during the day however, can go up to 20°C. During the winter season, the mountains get enveloped with snow offering breathtaking views of the towering Himalayan peaks.