[X = Not possible for Trekking] [M = Possible] [S = Best season]

CLIMATE:

Bhutan is an all season destination with a climate that varies widely from region to region. the dry winter months (December to March) offer warm days when the sun is shining. evening and early mornings are cool with over night temperatures falling to around freezing point. the spring and autumn season (March to June and September to November) offers warm during the day and slightly cool in the evening . Summer ( June - September days are clear and warm and afternoon showers which dispel some of the heats and temperatures fall at night.