Machu Picchu rises above the Urubamba River gorge at 2,430 meters, an Inca citadel carved into a saddle between cloud-forested peaks. This 15th-century site draws over a million visitors a year for good reason: precision-cut stone temples, terraced agriculture clinging to impossible slopes, and views that shift from jungle valley to snowcapped summits as the morning fog burns off. Getting here is part of the experience, whether you take the scenic train from Ollantaytambo through the narrow river canyon or spend days trekking the ancient Inca Trail past ruins most tourists never see.
Your ideal window runs from mid-February through early February of the following year, covering nearly the entire calendar. That said, the dry season from May through September is when Machu Picchu truly shines for trekkers and sightseers. Skies clear out, morning fog lifts faster, and the Inca Trail is at its most walkable. June and July coincide with the Inti Raymi festival in nearby Cusco, adding a layer of cultural spectacle worth building your trip around. If you prefer fewer crowds and lower accommodation costs, the shoulder months of April, September, and October give you drier conditions without peak-season congestion. The one period to avoid is early-to-mid February, when the Inca Trail closes for annual maintenance and conditions are least favorable.
Fall in Machu Picchu, Peru
March marks the tail end of the rainy season, and by April the skies begin to clear dramatically across the Andes. This transition makes fall a smart window for visitors who want drier conditions without the peak-season rush that builds in June. Early mornings at the citadel can still carry a damp chill, with lows settling around 65.8°F (18.8°C), so a light fleece goes a long way for those first entry slots. The Semana Santa celebrations in Cusco, typically falling in March or April depending on the year, fill the city with elaborate processions that blend Catholic tradition with Andean ritual. It's worth scheduling a day or two in Cusco before heading to the ruins.
By May the landscape has fully dried out, and this is one of the driest stretches of the year at Machu Picchu, with rain virtually nonexistent. Afternoon highs climb to 76.9°F (24.9°C), warm enough for comfortable hiking in a t-shirt but not oppressive. Crowds pick up noticeably in May as the high season begins, and this is the second busiest period of the year, so book your Inca Trail permits and Huayna Picchu tickets well in advance. Air quality dips into the Unhealthy for Sensitive Groups range by May, so travelers with respiratory sensitivities should be aware; the haze can also slightly obscure distant mountain views on some days. Pack sunscreen and a wide-brimmed hat because the equatorial sun at altitude is deceptively strong even on overcast mornings.
Winter in Machu Picchu, Peru
June through August is when Machu Picchu operates at full throttle. The dry season is in peak form, with rain chances near zero and crisp mornings that give way to pleasant afternoons. This is the busiest period, and accommodation costs reflect the demand. The Inti Raymi festival takes over Cusco every June 24, a dramatic reenactment of the ancient Inca sun ceremony featuring traditional music, dance, and elaborate costumes at the Sacsayhuaman fortress. Highs average 68.1°F (20.1°C) while overnight lows dip to 61.2°F (16.3°C), cool enough to warrant layers for early morning entry at the ruins. Early July brings another celebration worth knowing about: Machu Picchu's own anniversary on July 7, when the town of Aguas Calientes hosts concerts, dance performances, and gastronomic fairs.
Clear skies make this the best season for catching sunrise at the Sun Gate, where Inca Trail hikers get their first glimpse of the citadel below. Huayna Picchu, the steep peak that towers behind the ruins in every iconic photo, rewards climbers with unobstructed panoramas on dry-season mornings. Permits for this 45-minute scramble sell out months in advance, so plan accordingly. Air quality during winter months falls into the Unhealthy for Sensitive Groups range, meaning the occasional hazy morning is possible; those with asthma or similar conditions should carry medication. After exploring the ruins, a soak in the natural hot springs in Aguas Calientes is a time-honored way to unwind sore legs. Pack a rain shell anyway, because cloud forest microclimates can produce brief showers even in the driest months.
Spring in Machu Picchu, Peru
September and October represent a sweet spot that experienced Peru travelers know well. The dry season's tail end still delivers minimal precipitation, while visitor numbers drop below their winter peak. This is a particularly photogenic window: the surrounding mountains start showing early green growth from brief afternoon mists, creating a contrast against the gray stone ruins. Highs sit at 69.2°F (20.7°C), with mornings starting at 60.9°F (16.1°C), comfortable for walking the citadel's stone staircases without overheating. The Battle of Angamos holiday in mid-October can mean slightly more domestic visitors at the site, but nothing close to the June and July crush.
Air quality in September and October still falls in the Unhealthy for Sensitive Groups range, so sensitive travelers should continue to take precautions. By November, the first real afternoon showers begin rolling in, signaling the approaching rainy season. Tourism slows considerably, and you'll find it easier to get the classic postcard photo from the Guardian's House terrace without crowds pressing in behind you. This quieter window also means less competition for train tickets between Ollantaytambo and Aguas Calientes. If you're planning the classic four-day Inca Trail trek, September and October offer trail conditions nearly as good as the peak months, with the added bonus that permits are easier to secure. Bring a lightweight waterproof layer for the occasional late-afternoon mist and sturdy shoes with good grip, as stone paths can be slippery when damp.
Summer in Machu Picchu, Peru
December through February is the heart of the rainy season in the Andes, and Machu Picchu trades its dry-season crispness for lush, almost tropical greenery. The cloud forest canopy comes alive during these months, with orchids blooming and the chance to spot the Andean cock-of-the-rock, Peru's brilliantly colored national bird. Highs average 79.2°F (26.2°C) with lows around 67.9°F (19.9°C), the warmest stretch of the year. This is also the least crowded period, which means you'll share the ruins with far fewer visitors and accommodation prices drop.
Early February brings the year's peak temperatures, with highs reaching 82.6°F (28.1°C) and lows of 70.3°F (21.3°C), notably warm for a mountain site. February is also when the Inca Trail closes entirely for annual maintenance and environmental recovery, so trekking is off the table during this window. You can still visit the ruins via the train and bus route from Aguas Calientes. The Santuranticuy Christmas fair in Cusco's Plaza de Armas on December 24 is a memorable experience, with artisans selling handcrafted nativity figures featuring distinctly Andean features alongside traditional ceramics. Despite being the wettest season, showers tend to come in afternoon bursts rather than all-day downpours, so plan your citadel visit for the morning hours and bring a quality rain poncho.
At a Glance
Monthly weather, visitor crowds, air quality, holidays, and daylight hours to help you plan your trip.
Travel Tips & Safety for Machu Picchu, Peru
Most visitors reach Machu Picchu by flying into Cusco from Lima, then taking a train from Ollantaytambo or Poroy to Aguas Calientes, the small town at the base of the ruins. From Aguas Calientes, a short bus ride zigzags up to the entrance. Book train tickets and site entry permits in advance, especially during the dry season from May to September; Inca Trail permits in particular can sell out six months ahead for popular dates. Spend at least two full days in Cusco before heading to the ruins to acclimatize to the altitude, as the city sits at 3,249 meters and rushing to the trail without adjusting is the most common mistake visitors make.
Altitude sickness is a genuine concern along the Inca Trail, which crosses a pass at 4,215 meters, and even at the citadel itself at 2,430 meters. Stay hydrated, avoid heavy meals on your first day at altitude, and consult your doctor about altitude medication before the trip. Keep small bills in local currency for tipping guides and porters, and watch your belongings in crowded transit areas like train stations and bus queues in Aguas Calientes.