Mid September to November is an ideal time to visit Nepal. The countryside is green and lush and Nepal looks its most beautiful. The air is sparkling clean, affording near perfect Himalayan vistas. As the weather is neither too hot nor too cold, this is peak tourist season and it is also the main season for Nepalese festivals.
December to February can be a hauntingly beautiful time of the year to trek. The climate and visibility are still good, excellent clear views are common at high altitude but it can get very cold. You need to be prepared to encounter snow on the high altitudes and the higher passes may be closed.
March to Mid May is the next best time to trek in Nepal. The visibility is not as clear as earlier in the dry season but Nepal’s wonderful rhododendrons and many other flowers are in bloom. Mornings are usually clear, with clouds building up during the afternoon and disappearing at night, to reveal spectacular starry skies. As the season progresses, the magnificent rhododendrons bloom at higher and higher altitudes until the flowers reach tree line. In mid-May the weather warms up and many species of plant and animal life emerge, rarely seen at other times.
June to August is warm and wet but these months are blessed for the keen botanist as the higher valleys and meadows blossom with flowers and lush vegetation.
Climate in Nepal
Maximum-Minimum Temperatures in Celcius
* Rainy Season
Temperature in the mountains:
|2000m||0/13 °C||1/14 °C||4/18 °C||8/22 °C||12/23 °C||9/28°C||9/28°C||10/28°C||13/22 °C||10/21 °C||4/17 °C||1/14 °C|
|3000m||-3/12 °C||-1/13 °C||2/16 °C||5/19 °C||8/20 °C||1/20°C||1/20°C||1/20°C||11/19 °C||6/18 °C||1/15 °C||-2/13 °C|
|4000m||24-7 °C||-10/5 °C||-7/9 °C||-3/12 °C||-2/13 °C||1/17°C||-2/16°C||-2/16°C||1/13 °C||-4/12 °C||-8/8 °C||-10/6 °C|
|5000m||-20/3 °C||-15/5 °C||-10/7 °C||-7/11 °C||-3/11 °C||-4/14°C||-6/12°C||-6/12°C||-3/10 °C||-9/8 °C||-13/6 °C||-15/4 °C|