Country Overview For Peru
The climate in Peru typically varies from tropical in the east to dry desert in the west; temperate to frigid in the Andes. The terrain: western coastal plain (costa), high and rugged Andes in center (sierra), eastern lowland jungle of Amazon Basin (selva).
Weather advice for Huaraz trekking!
The best months for trekking weather in Huaraz are May to September
This is the period when the weather is generally more settled (although we can never guarantee good weather in the mountains & weather can change rapidly).
May and September are shoulder months with fewer other trekkers on the trails than the period June to August.
May is at the end of the rainy season, the weather is often improving with often clear skies, everything is fresh and green following the rains and there are lots of wild flowers. September is at the end of the season, often there is very good weather for trekking and it can be more relaxing with fewer large groups around.
Note: That weather conditions in the Andes are changing. Whereas in the past there was a defined wet & dry season, this is no not so much the case now. There can be periods of unsettled weather with cloud and rain at any time, even in the months so-called the “dry months” of June to August and you do need to be prepared for inclement weather at any time.