Bhutan experiences four distinct seasons (winter, spring, summer and autumn). Spring, and summer months are pleasant with mild temperature range from -2.5 degrees Celsius in winter to 25 degrees Celsius in summer in western Bhutan. Every season has its charm, for instance, the spring and summer season is plantation season for farmers across the country. The rejuvenation of life with colorful blossoms, and the lush green paddy fields make the country-side fresh and revitalizing. During the autumn season, the valley is transformed by the golden glaze color of the crops ready for harvest. The season breathes positivity into the air with the farmers ready to reap the rewards of their hard labor. The highlight of the winter season is the clear blue sky offering unobstructed views of the valley and the Himalayas making it ideal for hikers and excursions to the mountain passes.
For tourists interested in visiting Bhutan during the festival should consider planning their trip in the spring, and autumn season. Paro Tsechu is celebrated during the spring either in March or April and the Thimphu Tsechu is in autumn either in September or October. Paro, and Thimphu Tsechu are the most popular mask dance festivals in the country in terms of the attendance. Bhutan receives maximum tourists during these periods, and hence interested travelers are advised to book their trip early to secure flights, and hotel rooms.
Enthusiast trekkers considering trekking in Bhutan must plan their trip either during the spring or the autumn season. The trekking routes remain inaccessible with heavy snowfall during the winter months and consistent rainfall at higher altitude is not ideal for an enjoyable trek. Spring, and autumn season has mild climatic condition and mostly dry weather thus making it ideal for treks.