What to Wear and Pack for Machu Picchu
Layers for altitude swings
Temperatures shift significantly between morning cold and midday sun, and between Cusco's higher elevation and Machu Picchu's slightly lower, more humid setting.
Real walking shoes
The citadel's stone paths are uneven, and any additional hike (Huayna Picchu especially) demands proper footwear, not sandals.
Rain protection
Even in dry season, a light rain jacket is worth carrying given how quickly mountain weather can shift.
Sun protection at altitude
UV exposure is stronger at elevation — sunscreen and a hat matter even on a cool, cloudy-looking day.
What actually happens if you're underprepared
Unlike a dress-code site, there's no admission risk here — the risk is discomfort or altitude sickness from being unprepared for the cold and thin air rather than being turned away.
Packing for the Inca Trail specifically
Multi-day trekkers need a more serious packing list — a proper sleeping bag rated for cold nights, moisture-wicking layers, and broken-in hiking boots rather than casual walking shoes.
Medication to discuss with a doctor beforehand
Some travelers take a prescription altitude sickness medication starting before arrival — worth a conversation with a doctor ahead of the trip rather than deciding on arrival.
Sun protection at altitude
UV exposure is stronger at Cusco and Machu Picchu's elevation than at sea level, so sunscreen and a hat matter even on a cool or overcast day.
Packing for temperature swings between Cusco and Machu Picchu
Machu Picchu itself sits at a notably lower, warmer, and more humid elevation than Cusco — packing for both means genuinely different layers rather than one uniform outfit.
What to leave behind
Heavy, bulky clothing takes up space better used for layers — a few versatile pieces that combine well cover more scenarios than a large, single-purpose wardrobe.
Footwear specifics
Broken-in hiking boots or trail shoes, not brand-new ones, prevent blisters on uneven stone paths — test any new footwear on shorter walks before relying on it for a full day at altitude.
Sleepwear for cold nights
Cusco nights get genuinely cold even in dry season — warm sleepwear or an extra blanket request at your accommodation makes a real difference.
Whatever else you pack, a reliable daypack with rain cover protects your essentials through whatever the mountain weather decides to do on your specific day.
In the end, dressing in adaptable layers matters more than any single specific item — conditions here shift enough that flexibility beats any one perfect outfit.
Whatever you ultimately pack, err on the side of one extra warm layer — it's easier to remove and carry than to wish you had it partway through a cold morning.