Climate and Weather
Weather in Nepal is generally predictable and pleasant. There are four climatic seasons: March to May (spring), June to August (summer), September to November (autumn) and December to 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 mostly dry with comfortable temperatures in regions below 3000m. At higher altitude winter temperatures can drop well below freezing with a high level of snowfall. As a rough guide, mean temperatures will decrease by just over 1 degree centigrade for every 200 metre rise in altitude.
The best time to visit
Each of Nepal's climatic seasons offer something different and visitors do come to Nepal all year round. However, the weather that suits most people are during pre monsoon (mid February to May) and post monsoon (Mid September to early December). Both periods tend to be fairly dry, and provide pleasant conditions for trekking, rafting and sightseeing. During the pre-monsoon season visitors will have the benefit of flowering plants and rhododendron as well as good visibilty. Trekking is possible in areas which are in the rain shadow like Dolpa and Mustang even during wet summer.
Average Maximum - Minimum Temepratures (In degrees Celsius) of Kathmandu - Pokhara - Chitwan
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Kathmandu | 19-2 | 20-4 | 25-8 | 30-15 | 30-20 | 32-25 | 32-25 | 29-20 | 27-18 | 23-15 | 23-4 | 20-2 |
Pokhara | 20-8 | 21-8 | 27-10 | 30-18 | 30-22 | 33-28 | 33-28 | 30-22 | 29-20 | 27-18 | 23-11 | 20-8 |
Chitwan | 24-7 | 26-8 | 33-12 | 35-22 | 35-24 | 35-30 | 35-30 | 33-28 | 32-22 | 31-20 | 29-12 | 24-8 |