Bhutan’s climate varies greatly depending on elevation – from the warm, subtropics of the south to the cool, permanent snow-covered Himalayas.
Spring and Autumn are the most popular time to visit Bhutan.
Spring (March to May): is usually cloudier with some rain, however the wildlife and flowers are at their most vivid.
Monsoon (Mi-June to early September): the monsoon season is not highly recommended for travel.
Autumn (September to November): is a great season to visit with the best mountain views and mild weather.
Winter (December to February): the temperatures can reach below freezing, though the day time temperatures are usually mild with clear skies. Snowfall is minimal.