|    
Arequipa
Tourist Attractiveness
Tourist Guide
Tourist Info


The climate in the Colca valley has two clearly marked seasons.  The summer is from December to April, when it rains a little, generally in the afternoons and at night.  Average annual rainfall is 400 mm.   Low temperatures are 4 or 5 °C, rising to 18 to 24°C  in the sunny mornings.

At this time, particularly in January and February, it can be misty both in the canyon and along the highways at dawn or dusk.


During the autumn-winter season, from May to August, it does not rain at all.  This is a very dry season, with the phenomenon of the "heladas" (frosts) when the temperature drops to -8°C or -10 °C between 4 a.m. and 6 a.m., but by 9 or 10 in the morning it has risen to a comfortable 15 to 20°C.  Colca can be visited all the year round.

The altitude of the Colca Valley makes a period of biological acclimatization necessary for all living being, and especially for people used to living at sea level.
When a traveler goes to higher altitudes, his/her organism starts to adapt and in some cases the adaptation is progressive.  The traveler is bothered by headaches, sleepiness, a queasy stomach, or nausea, all of which are symptoms of what is known as "altitude sickness" or "soroche".  These symptoms can be avoided if the person makes the ascent in steps, that is, spending one or two days at an intermediate altitude, which could be Arequipa (2,300), then Colca (3,400), finally continuing up to Cuzco, which is the same altitude as Puno (3,800).
It is recommendable to watch your diet before and during a stay in places at a higher elevation than where you normally live, since the digestion works much more slowly and certain types of food could cause problems.