Inca Trail Weather, Month by Month

The trail crosses three climate zones

The Inca Trail is unique in that you walk through three distinct ecosystems in four days, and each has its own weather pattern. Understanding which zone you're in at any moment matters more than the calendar month.

• Andean highland (puna): Above 3,800 m. Cold, dry air. Strong sun by day, sub-freezing by night. Days 1–2 of the Classic.
• Cloud forest (yungas): 2,500–3,800 m. Daily mist, frequent showers, lush vegetation. Days 2–4 transition.
• Subtropical lower valley: Below 2,500 m. Warm, humid, mosquitoes. Aguas Calientes and the lower trail.

Month-by-month overview

Dry season (May to September)

This is what most travel guides recommend, and the recommendation is basically correct. From May through September, the Cusco region's weather is dominated by descending dry air from the Pacific high. Days are sunny, skies are clear, and the long Andean views the trail is famous for are reliably visible. Daytime temperatures are pleasant for hiking (15–22°C in the sun) and the lack of rain means easier camping, drier trail conditions and fewer landslide risks.

The trade-offs:

• Cold nights. July nights at the high camps regularly hit –5°C. Bring a 4-season sleeping bag.
• Crowds. 200 trekker permits per day, all booked. The trail is not solitary — you'll encounter other groups regularly.
• Prices. Operators charge dry-season rates, and Cusco hotel prices spike for July and August.
• UV exposure. Strong sun + thin air means serious sunburn risk. SPF 50+ and a wide-brimmed hat are essential.

Wet season (November to March)

The wet season is dramatically different. Cumulative monthly rainfall in January and February reaches 200+ mm, and afternoon thunderstorms are nearly daily. The compensations are real:

• Beautiful landscapes. The cloud forest is at its most vivid. Orchids, bromeliads and waterfalls everywhere.
• Smaller groups. Permits often available at 3 weeks' notice. Campsites are quiet.
• Lower prices. Operators discount 15–25% off dry-season rates.
• Warmer nights. The cloud cover keeps high-camp temperatures above 0°C most nights.

The realities:

• Plan for 4–6 hours of rain per day. Quality rain gear (jacket + pack cover + waterproof bag liners) is non-negotiable.
• Trail surfaces are slippery, especially the long stone descents on Day 3.
• Views from Dead Woman's Pass and Phuyupatamarca will likely be obscured by clouds.
• Sunrise at the Sun Gate may be a misty atmosphere rather than a clear postcard view (some find this more memorable).
• Risk of landslides closing the trail or rail line is small but real, especially in January and March.

Shoulder months (April and October)

If we had to recommend one period to a friend, it would be the second half of April or the first half of October. The dry season is largely established (April) or still mostly intact (October), permits are available at 4–5 months' notice instead of 6–8, prices are modestly lower than peak months, and crowds are noticeably thinner. Weather is typically a mix: 70% dry, 30% rainy days. Bring rain gear but don't expect to wear it constantly.

February: the closure month

Every February, the Classic 4-Day Inca Trail closes entirely for archaeological maintenance and trail repair. The Ministry of Culture and SERNANP work to restore eroded sections, repair stone steps damaged by the wet season, and conduct a thorough conservation review of the major archaeological sites. The corridor reopens on March 1.

If you must travel in February, options include:

• Short Inca Trail (1-day or 2-day): Open year-round. The corridor closes for the Classic but the Short Trail uses a smaller protected zone.
• Salkantay route (without Inca Trail extension): Open year-round. The 5-day version ends at Machu Picchu via train.
• Lares trek: Open year-round. A cultural trek through Quechua weaving communities.
• Choquequirao trek: Open year-round. A 4–5 day trek to the lesser-known sister citadel of Machu Picchu.

Microclimate notes by section

Beyond the calendar, the trail itself has weather peculiarities:

• Day 1 (Km 82 to Wayllabamba): Lower altitude, often warmer than Cusco. Afternoon showers possible even in dry season.
• Day 2 (Dead Woman's Pass): Coldest, windiest section. Temperature can drop 15°C in the 30 minutes before reaching the pass on a stormy day.
• Day 3 (cloud forest): Most consistently misty. Even on clear days, expect pockets of fog around Sayacmarca and Phuyupatamarca.
• Day 4 dawn: Sun Gate weather is unpredictable. Many "perfect" weather forecasts deliver clouded sunrises, and many forecast-poor days deliver pristine views. Plan to arrive regardless.

Frequently asked weather questions