Bhutan has some of the best trekking in the world with breathtaking scenery. Some treks are short and suitable for beginners while others can be long and challenging. The best season for trekking in Bhutan is spring and autumn – March to April and late September to mid-November. Although the nights are colder in autumn with temperature in higher altitudes ranging from 20°C down to minus 10°C, the days are warmer with bright sunshine. The best months are October to November with clear blue skies and superb view. The day’s temperature hovers upwards to 20°C, falling to around 5°C by night. Clouds and wind tend to build up in the afternoon but typically clear off at night for a display of spectacular starry skies.
Trekking in Bhutan is physically demanding because of the distance and abrupt changes in elevation. You will have to spend 7 to 9 hours walking 15 to 19 kilometres daily to reach the camp sites. Most of the climbs run through deep forests on rocky trails and sometimes the trails traverse through wet mud, commanding agility to hop between around river stones.