August and September
are usually slightly warmer by day and night, with more clouds,
particularly in the afternoon, and greater risk of some rain. Weather
conditions in the Cordillera Blanca and Huayhuash are usually unpredictable
since there is always the possibility of cooler wet weather. The
primary difference between seasons is that “summer”
is mostly rainy and “winter” is mostly dry.
Altitude

Huaraz, the main town in the area is located at about 10,303’ft
/ 3091m, driving north from Lima some 8 hrs you will gradually climb
up through the valleys in a zigzag road that connects coast and
mountains.
The highest point is the Conococha pass at 14,000’ ft / 4200m
before you enter the Huaylas alley.
Acclimatisation is recommend, at least one day resting for everyone
since altitude affects the human body, regardless of age or gender.
Relax and avoid climbing stairs, and walk very slowly at the beginning.
We understand your eagerness to absorb as much as possible in a
limited time, yet we want you to enjoy everything to the fullest.
All has been paced to ease your arrival, check-ins and sightseeing
for your maximum well being. It is very important to be 100% acclimatized
in order to have a successful trek.
TEMPERATURE / Celsius degrees.
RAINFALL / mm
Water
Visitors are always concerned about drinking the water, and
it is a legitimate concern. The problem is not so much that our
water is good and theirs is bad; rather, the flora and fauna in
the two are different, creating adjustment problems for the gastrointestinal
system, and two weeks is not usually enough time for such adjustment.
So we strongly recommend that our clients use only bottled water
for drinking, tooth brushing, etc.--and check the seal on the bottle
before buying; avoid ice in drinks unless you know it was made from
purified water. Bottled water is available everywhere we go except
on the treks, where we use treated and purify water for all drinking
and cooking needs.
Things to bring
Camera, sufficient supply of films, a strong carrying strap, preferably
metal or chain reinforced; summer-weight clothes for daytime in
Huaráz and most areas in countryside; short and long-sleeve
shirts; light to medium sweaters and rainproof jacket for night
time and at higher altitudes; rain pants; swimsuit (for warm springs);
bandanna; sunglasses; minimum 12 sunscreen, hat that shades face
and back of neck (preferably rainproof); medium-weight, well broken-in
hiking boots, warm sleepwear; Gore-Tex or otherwise waterproofed
hiking boots; thin liner socks and heavier wool or polypro socks
for boots; shopping bag, personal medications (in addition, we suggest
to bring Tinidazol and/or Imodium against intestinal disorders,
moleskin or other protection from foot chafing and blisters; insect
repellent (30% DEET suggested); extra glasses or contact lenses;
one or two one-litre water bottles; lockable luggage or duffel bag;
additional, smaller lockable bag for items left behind in hotel;
comfortable sport/running shoes for town and campsites; sleeping
bag; concealed money/document carrier; pocket dictionary or phrasebook
(Spanish-English); day pack; alarm clock or watch; torch or headlamp
with extra batteries; heavy duty sealable plastic bags for keeping
things dry inside pack and luggage.
Not necessary, but useful to bring: trail mix (very expensive in
Peru); inflatable pillow for use on plane and while camping; telescoping
ski/trekking poles; binoculars; collapsible umbrella; collapsible
pad-chair; reading/writing material (lightweight); electrolyte replacement
powder; transformer and/or adapter for appliances such as battery
charger.
Please bring only a reasonable amount of each type of clothing.
Luggage

In order
to ensure that you arrive in Peru with the most important necessities
intact, we recommend that you wear your hiking boots on the planes,
and make sure that money, credit cards, cameras, shoes, medications
and all valuables are either on your person or in your carry-on
luggage during your flights.
Recommended weight of luggage in the high Cordilleras in Huaraz
is 46 lbs (20kg) maximum per person, this applies directly to the
fact that we do not overload our donkeys and delay our stuff at
campsites. Donkeys cannot carry more than 80 lbs (35 kg).