Climate: Nepal’s weather is
generally predictable and pleasant. There are four climatic seasons:
March-May (spring), June-August (summer), September-November (autumn)
and December-February (winter). The monsoon is approximately from the
end of June to the middle of September. About 80 per cent of the rain
falls during that period, so the remainder of the year is dry. Spring
and autumn are the most pleasant seasons; winter temperatures drop to
freezing with a high level of snowfall in the mountains. Summer and
late spring temperatures range from 28ºC (83ºF) in the hill regions to
more than 40ºC (104ºF) in the Terai.
In winter, average maximum and minimum temperatures in the Terai range
from a brisk 7ºC (45ºF) to a mild 23ºC (74ºF). The central valleys
experience a minimum temperature often falling bellow freezing point
and a chilly 12ºC (54ºF) maximum. Much colder temperatures prevail at
higher elevations. The Kathmandu Valley, at an altitude of 1310m
(4297ft), has a mild climate, ranging from 19-27ºC (67-81ºF) in
summer, and 2-20ºC (36-68ºF) in winter.
Required clothing :
Lightweight and tropical clothes with umbrella
are advised for June to August. Between October and March, lightweight
clothes are worn in Kathmandu, with a coat for evenings and warm
clothing for the mountains.