From April to the end of October, it is warm in Kathmandu. In Nepal clothing for travelling purpose should be comfortable and light. You can also wear longer shorts provided that it is weather- friendly. In the months of November to the end of March, days are usually warm and evenings are cool. Put on your summer clothes during the day time but in the evening and night it is advisable to carry a light jacket. Winter season starts from December to February. One must be equipped with sufficient winter wears like jackets, sweaters, trousers etc to stay protected from the cold. In accordance to Nepali weather you can have your clothes well-packed in your luggage or you can also purchase clothes of your choice and needs from the clothing stores in Nepal.And in some conservative community, display of skin may be offensive to some people.
We were so pleased with our trek through Upper Mustang - thank you!