Machu Picchu lies just above the cloud
forest of the Andes' eastern mountains, at 2,350 m.a.s.l.
A subtropical climate, it gets strong sunshine during
the day, though it gets quite cool in the shade and,
specially, at night, when temperatures can drop to around
8ºC (48ºF).
Average temperatures are though quite
mild, rarely rising above 30°C (86ºF) nor dropping
below 11°C.
The dry season runs from May to October
(winter in the southern hemisphere) and is usually considered
the best period for visiting Machu Picchu. Nights though
get the coolest during this period, particularly in
July and August.
The rainy season, from November to
April, brings heavy rains, with most precipitations
coming down in January and February. It’s usually
clear and dry most mornings with outbursts of heavy
rain in the afternoons. During this period, some roads
might be closed by landslides or flooding, in particular
those leading to villages off the beaten track.
However, don't take the climate differences
between the dry and rainy seasons too seriously, that
is, as if one was the “good” season and
the other the “bad” one. You could well
get more pleasure during the wet season, with less tourists
around and a more mystic atmosphere.
“To my surprise -wrote
Johan Reinhard for National
Geographic-, I later found that it didn't matter
whether the weather was perfect or Machu Picchu was
shrouded in mist. In perfect weather you see clearly
how its well-planned architecture blends with the spectacular
scenery of the surrounding peaks and gorges. Misty conditions
wrap the stone engineering in a soft cloak of magic
and mystery.
Below you can see current weather conditions for Machu
Picchu (and not Machu Piccho, as suggested by Accuweather.com)
and a 4-day forecast. A 15-day forecast is also available.