In short
- The dry season runs from May to October.
- Trails are safer and less muddy.
- Clear skies bring out the turquoise water.
In this article
Humantay Lake sits at 4,200 meters (13,780 feet) in the Peruvian Andes. Weather directly impacts trail safety and your view of the glacier. Planning your hike for the right season makes the steep climb much safer.
What is the best time to visit Humantay Lake?
The ideal time to hike to the lake is between May and October.
This period is the dry season in the Andes. It offers the clearest skies and the brightest turquoise water. Rain is rare, making the steep 3.8-kilometer (2.4-mile) round trip safer and less muddy.
What is the Humantay Lake weather like in the dry season?
Mornings are freezing, but skies are generally clear and sunny by midday.
Tours start as early as 4:00 AM, so expect very cold temperatures during the drive and the start of the hike. Once the sun rises, the high-altitude UV rays are intense. You need warm layers for the morning and sunscreen for the afternoon.
Can you visit Laguna Humantay in the rainy season?
The lake is open year-round, but November to April brings heavy rain and muddy trails.
During these months, clouds often obscure the Humantay and Salkantay mountains. The trail becomes slippery, increasing the difficulty of the 300 to 400-meter (1,000 to 1,200-foot) elevation gain. Weather changes rapidly, so a waterproof jacket is essential if you visit now.
How do the seasons compare for hiking?
The dry season provides better views, while the rainy season has a higher risk of obscured mountains.
Review the seasonal differences before you book your transport from Cusco.
What time of day should you arrive?
Reach the main viewpoint before 9:00 AM for the best light and fewer crowds.
Morning light hits the glacier and the water directly. Most guided tours plan their 12 to 14-hour itineraries to get you to the Soraypampa trailhead early. If you hire a private taxi, leave Cusco early enough to beat the main wave of tour buses.
Does weather affect altitude sickness?
Weather does not directly cause altitude sickness, but cold and rain can increase physical strain.
The lake sits at a high altitude. You must acclimatize in Cusco for at least two days regardless of the season. Bring high-energy snacks and coca leaves to help manage the altitude during the demanding 1.5 to 2.5-hour ascent.
Questions travellers ask
When is the dry season in the Andes?
The dry season runs from May to October, offering the most stable weather for hiking.
Is it cold at Humantay Lake?
Yes, early mornings are freezing. You need warm layers like a fleece or down jacket, especially when starting the hike from Soraypampa.
Do I need a rain jacket in the dry season?
Yes. Weather changes rapidly in the Andes, so always pack a waterproof jacket or rain poncho just in case.
