Fansipan weather, climate, temperature, Mt Fansipan weather forecast, when, what's the best time to visit Fansipan mountain Vietnam?
The climate of Fansipan Mountain is unique to Vietnam. It is highly seasonal, with a subtropical climate in the summer and a temperate climate during the winter. Mean annual temperature for Sapa town is 15.4°C, with a maximum of 29.4°C and a minimum of 1°C. The warmest months are July and August, and the coldest months are December and January. Snow falls in some years on the highest peaks.
In common with the rest of northern Vietnam, Fansipan Mountain experiences a marked wet season from May to September, with the heaviest rainfall occurring in July and August. Mean annual rainfall is 2,763 mm, with a high of 4,023mm and a low of 2,064mm. Humidity ranges from 75 to 91 percent with a yearly mean of 86 percent.
Climate varies considerably within the mountain. The prevalent wind direction for most of the year is west to east, leading to cloud formation on the upper slopes of the Fansipan massif. These high-altitude areas are covered by cloud most days of the year and have very high humidity. Cloud also penetrates into the valleys but these areas are usually less humid than the mountain slopes. In the extreme east of the mountain, around Ban Ho village, mean temperatures are considerably higher due to the lower altitude of these areas.
The summit of Fansipan is accessible all year round, but the best time to make the ascent is from mid-October to mid-November, and again in March.
Foreigners like best to book Fansipan tours between October and December, as this period is more often than not free from the heavy rains that obstruct the jaunt. But the Vietnamese prefer their tours to the peak of the mountain from February to April, as it is not so cold then. However, the best time for the trek to the mountain is from the end of February to the start of March, when the flowers all flourish and the climbers may behold the carpets of brilliant blossoms, violets and orchids, rhododendrons and aglaias.