Weather In Bhutan

December to February is dry winters for Thimpu with almost no rains until March, with an average of rainfall of just 20 mm, per month. The average goes up to 220 mm in August till 650 mm.

Winter season covers Bhutan from late November up till March, with chill and snowfall all around, going up to 3000 m. The north-east monsoons in winters, extremely fast winds blow all around the high altitudes all through the mountain passes, because of which Bhutan is called Drukyul or the Land of the Thunder Dragon in the local language.

Southern Bhutan is characterized by humid and hot sub-tropical climate, which almost remains the same all round the year. The temperature ranges between 15-30 degrees Celsius. In the northern parts of the country, the weather in winters is quite cold. The central part is also a bit cold, changing temperature while the forest area has warm summers and dry winters. Owing to their high-altitude placement, the lower parts are cold even during summers and the mountains are always covered with snow.

The summer monsoon in India starts in mid June and showers the country by the end of September, also shows its effect around Bhutan´ s southern border, brining-in heavy showers with high humidity in the air. These rains amount to 60-90 percent of the rainfall of the western region. Annual rainfall largely varies all around Bhutan. Northern Bhutan up to Tibet receives around 40 mm of precipitation in a year, mainly snow. The central areas, which have temperate climate, the yearly rainfall is 1000 mm while at subtropical and humid southern region, the annual rainfall is 7800 millimeters, giving enough waters for the survival of the thick tropical forest.