The climate in the Peruvian Andes can basically
be divided into two seasons: The wet or rainy season, and the dry
season. Although the climate in the Inca
Trail area is usually temperate throughout the year, the
best season to do the trek is during the dry season (between April
and October), since rains are frequent from November through March
and the trail can easily turn into a dangerous and slippery mud.
Thus, the dry season is from May through September, with generally
sunny and mild days, while the nights may be very cold.
The wet season is from November through May, but the rains proper
are from November through March. During this period the Inca
Trail is usually closed down, due to the danger posed
by the frequent mudslides or "huaycos". Average annual temperatures are between 20.4 ║C to 26.6 ║C. (68.72 F to 79.88 F).
The geographical composition of the Inca Trail
is very varied. There are numerous gulches and glacier watercourses
that flow into the Urubamba River, which crosses the area in a deep
more than 40 kilometres (24.85 miles) long valley, forming a succession
of different ecological floors.
The natural scenery is impressive.
Not only because of the notable balance struck between nature and the Inca architecture, but also by the impressive framework set by the snow clad Vilcabamba range with peaks reaching up to more than 6000 m.a.s.l. (16690 ft)
Moreover, the Inca Trail is surrounded by enchanted
forests and valleys, which create fantasy like images and where
dawns and sunsets turn into shows of grandeur and mystery.