Cusco is not a destination you can improvise. Not because it’s hard to visit, but because arriving without basic information can turn the first few days into an uncomfortable experience, when they should be the best part of the trip. The altitude, the weather, the permits, the logistics: everything has its particularities, and knowing them before leaving home makes a real difference. This guide covers what every traveler should know before landing in the city.
Contents
- What is Cusco and why does it require special preparation
- Altitude sickness in Cusco: how to prepare before traveling
- Documents and entry requirements for Peru
- What to pack for Cusco
- Money, currency exchange, and payments in Cusco
- How to get to Cusco and what to book in advance
- Connectivity and internet in Cusco
- Safety in Cusco: practical tips for travelers
- Frequently asked questions about preparing for a trip to Cusco
What is Cusco and why does it require special preparation

Cusco was the capital of the Inca Empire and today serves as the gateway to Machu Picchu, the Inca Trail, the Sacred Valley, and dozens of archaeological sites scattered throughout the region. The city has an enormous tourism offering, but also geographic conditions not found in most destinations around the world. That makes it special, and it also means travelers need to arrive with some preparation.
Altitude, climate, and geography: the essentials before planning
The city of Cusco sits at 11,150 feet above sea level. That number is not just a statistic: it is the single factor that most affects how the body feels during the first few days. At that altitude, the air has less oxygen than at sea level, and the body needs time to adjust. Not all travelers react the same way, but practically no one arrives completely symptom-free without taking precautions.
The climate in Cusco is Andean highland, with two well-defined seasons. The dry season runs from May to October, with sunny days, cold nights, and daytime temperatures around 64 to 68 °F. The rainy season runs from November to April, with frequent afternoon downpours and higher humidity overall. Nighttime temperatures in both seasons can drop below 41 °F, even during the warmest months.
What is the best time of year to visit Cusco
Peak season runs from June to August. The weather is more stable, there is less risk of rain on treks, and the skies are clear more consistently. It is also the busiest and most expensive time, with accommodations and Inca Trail permits selling out weeks in advance. June also brings the Inti Raymi, the Inca festival of the sun celebrated on June 24, which attracts thousands of additional visitors.
May and September are a good alternative: the weather is still favorable, there are fewer tourists than during peak season, and prices are somewhat more accessible. If the trip is planned for November through April, keep in mind that rain can disrupt trekking routes and that the Inca Trail closes for maintenance during the entire month of February.
Altitude sickness in Cusco: how to prepare before traveling

This is the topic that generates the most questions among first-time visitors to Cusco, and for good reason. Altitude sickness can ruin the first few days if you don’t know how to manage it, but it is also perfectly manageable if you arrive with the right information.
What is soroche and what symptoms does it cause
Soroche, or acute mountain sickness, is the body’s response to reduced oxygen in the air at high altitudes. In Cusco, the most common symptoms are headache, fatigue, dizziness, loss of appetite, and difficulty sleeping well the first night. In most cases, these are mild discomforts that subside within 24 to 48 hours. More severe cases with persistent nausea or difficulty breathing are less common but require medical attention.
The intensity of soroche does not depend on the traveler’s physical fitness. Very active people can experience stronger symptoms than someone sedentary, and vice versa. Age is not a reliable predictor either. What does matter is the speed of ascent: someone who arrives directly from Lima by plane has less time to adapt than someone who comes up from the Sacred Valley or from Aguas Calientes.
Medications and remedies you can take before arriving

The most commonly used medication to prevent altitude sickness is acetazolamide, commercially known as Diamox. It works by speeding up the body’s adaptation to altitude and is taken starting one or two days before arrival. It requires a prescription in most countries, so it is worth consulting your doctor before departing. It is not suitable for people allergic to sulfonamides.
In Cusco, coca leaves are easily available, and when brewed as tea or chewed, they help reduce some symptoms of soroche. It is not a cure, but it does provide real relief for headaches and fatigue. It is legal in Peru and available at hotels, markets, and restaurants. Other common painkillers like ibuprofen or acetaminophen also help with headaches, although they do not address the underlying cause.
What to do and what to avoid during the first 48 hours in Cusco
The first day in Cusco should be a calm one. Walk slowly, avoid intense physical exertion, stay well hydrated, and eat light meals. These are the recommendations any altitude medicine specialist would give. The body needs that time to regulate heart rate, breathing, and blood pressure.
What to avoid during the first 24 hours: alcohol, heavy meals, very hot showers, and intense physical activity. Some travelers underestimate this period and go out walking for hours on the day they arrive, or attend dinners with wine included. The result is almost always a headache that keeps them in bed the following day. Acclimatization takes no more than two days if you respect the pace.
If your itinerary includes trekking or visits to higher-altitude sites like the Inca Trail or Rainbow Mountain, at Peru Sites Adventure we plan every route considering the acclimatization time needed so your body arrives in optimal condition. Check out our packages and get your questions answered by our team.
Documents and entry requirements for Peru

Peru does not require a visa for citizens of most countries in Latin America, Europe, the United States, Canada, Australia, or Japan. In those cases, a valid passport is sufficient to enter as a tourist. However, there are conditions worth reviewing before traveling.
What documents do you need based on your country of origin
Your passport must be valid for at least six months from the date of entry into the country. At immigration control, you will receive an Andean Migration Card, which is the document that certifies your legal stay in Peru and must be kept until departure. The authorized stay for tourists is up to 183 days per calendar year.
Citizens of some countries do require a visa. Before traveling, it is advisable to check the updated requirements on the official website of Peru’s Ministry of Foreign Affairs or at the Peruvian embassy in your country of origin, as conditions can change.
Why travel insurance is essential
Cusco is a city at extreme altitude with physical activities ranging from multi-day trekking to mountain biking. In any medical emergency, treatment at private clinics comes with high costs that travel insurance covers without issue. Without insurance, a hospitalization can mean an expense of several thousand dollars.
The insurance should cover, at a minimum, emergency evacuation, medical care for altitude-related conditions, and flight cancellation. Some basic policies exclude adventure activities or altitudes above 10,000 feet, so it is important to read the coverage carefully before purchasing. There is a wide selection of international insurance plans that can be purchased online before the trip.
What to pack for Cusco

Cusco has a significant temperature variation between day and night, and depending on the type of activities planned, packing needs change quite a bit. The key is finding the balance between bringing what is necessary and not overpacking, especially if the trip includes trekking.
Recommended clothing by season and type of activity
The layering principle is the most useful approach for Cusco. Conditions change quickly throughout the day, and what works in the morning may not be enough by late afternoon. A waterproof and windproof jacket, a fleece or fleece pullover, and thermal base layers cover that variation well in any season.
Rainy season (November to April)
Rainfall is frequent, especially in the afternoons. Mornings tend to be sunny with pleasant temperatures, but within minutes a heavy downpour can break out. A waterproof jacket is essential, along with a rain poncho as backup. Footwear should be water-resistant, since streets and trails get wet constantly. Quick-dry clothing is more practical than cotton, which takes long to dry and chills the body. A compact umbrella is also useful for walking around the city.
For trekking during this season, rain gear becomes even more important: gaiters, waterproof pants, a pack cover, and dry bags to protect clean clothes. Trails become slippery, so boots with good traction are essential. At higher-altitude campsites, nighttime temperatures can drop below 32 °F, and the humidity intensifies the feeling of cold.
Dry and cold season (May to September)
During the day, the sun is intense and the temperature can feel warm, especially around midday. However, once the afternoon sets in, the cold arrives quickly. Nights and early mornings are the coldest of the year, with temperatures that can drop below 32 °F even in the city. Thermal base layers, a thick fleece, and a windproof jacket are basics for the hours without sun. During the day, lightweight layered clothing allows you to adapt to the temperature swings.
For trekking during this season, rain is unlikely, but nighttime cold is more severe. A beanie, gloves, scarf, and a sleeping bag rated for below-freezing temperatures are necessary on routes like the Inca Trail, the Salkantay, or the Lares. Waterproof trekking boots are still recommended because of morning dew and stream crossings.
By type of activity
For the city, comfortable walking clothes are enough in both seasons, always with an extra layer available for the afternoon. If the plan includes Machu Picchu or the Sacred Valley, temperatures are somewhat warmer than in Cusco, but rain can appear in any month of the year in that cloud forest zone. For multi-day trekking, specific gear is needed regardless of the season: waterproof trekking boots, technical layered clothing, a beanie, gloves, and sun protection.
Basic first aid kit and essential health items
In addition to the altitude sickness medications already mentioned, it is advisable to bring high-SPF sunscreen (UV radiation at altitude is considerably more intense than at sea level), insect repellent for lower jungle areas like Aguas Calientes, antihistamines, anti-diarrheal medication, and any personal prescription drugs. Cusco has well-stocked pharmacies, but having the basics on hand saves time.
Gear you need if you plan to go trekking
For multi-day trekking, trekking poles reduce the impact on your knees during descents, which are prolonged on routes like the Inca Trail. The trekking backpack should have enough capacity for clothing, water, and personal items for the day, since camping gear is transported by mule drivers or porters. A headlamp, a sleeping bag rated for below-freezing temperatures, and a pair of camp shoes are items that make a real difference in comfort.
At Peru Sites Adventure, we tell each traveler exactly what to bring based on the route they book, with detailed lists and specific recommendations.
Money, currency exchange, and payments in Cusco

The official currency in Peru is the sol (PEN). Although some tourist-oriented establishments accept US dollars, the majority of businesses, markets, and local transportation work exclusively in soles. Operating in soles is always the better deal.
Should you bring dollars or exchange for Peruvian soles?
Bringing dollars to exchange in Cusco can be a good option if the exchange rate in your home country is unfavorable. The dollar gets a very good exchange rate in Peru and is exchanged without difficulty. The euro is also accepted at exchange houses, though less widely. ATMs in downtown Cusco dispense soles directly from international accounts and usually offer a reasonable exchange rate, although they charge a withdrawal fee.
Where to exchange money safely in Cusco
The licensed exchange houses in the historic center, especially on Mantas Street and around the Plaza de Armas, are the most convenient option. They offer better exchange rates than banks and do not charge a commission. Street money changers should be avoided: although they sometimes offer slightly higher rates, there is a real risk of counterfeit bills or counting scams. Banks like BCP, Interbank, and BBVA have branches downtown and are a safe alternative, though with less competitive rates.
How to get to Cusco and what to book in advance

Getting to Cusco involves logistical planning that is worth sorting out before leaving your home country, especially during peak season.
Flights and main routes to reach Cusco from abroad
There are no direct international flights to Cusco. All international flights arrive first in Lima, where you take a domestic connection to the Alejandro Velasco Astete International Airport in Cusco. The Lima-Cusco flight takes approximately one hour, and there are multiple daily frequencies operated by LATAM, Sky Airline, and Avianca, among others. The minimum recommended connection time in Lima for domestic flights is two hours.
From some cities like Bogota, Buenos Aires, or Mexico City, there are flights with a single stopover in Lima. From Europe and the United States, most routes connect through Lima with one layover or with a transfer at another Latin American hub.
What reservations should you secure before leaving your country
The Inca Trail permit requires the most advance planning: during peak season, it sells out four to six months before the visit date. Entry to Machu Picchu also requires advance booking through the official system, with assigned entry times and circuits. Accommodations in Cusco during June, July, and August should be booked at least two to three months in advance.
If the trip is just a few weeks away and you still don’t have your permits, at Peru Sites Adventure we manage availability and find alternatives based on your dates.
Connectivity and internet in Cusco

Connectivity in Cusco is good within the city. Outside of it, on trekking routes or remote archaeological sites, the signal is limited or nonexistent depending on the area.
Local SIM card or roaming: which option is better
Buying a local Peruvian SIM card is the most affordable option for anyone staying in the country for several days. The carriers with the best coverage in the Cusco region are Claro and Movistar. They are available at the Lima airport and at carrier stores in downtown Cusco, with data plans ranging from about 8 to 13 dollars for several gigabytes. International roaming works in the city but has considerably higher costs depending on the plan from your home country.
Mobile coverage and wifi access in Cusco and surrounding areas
Within the city of Cusco, 4G coverage from Claro and Movistar is extensive. In Aguas Calientes, the town at the foot of Machu Picchu, there is also reasonable coverage. At the Machu Picchu citadel itself, the signal is intermittent. On trekking routes like the Inca Trail, the Salkantay, or the Ausangate, coverage is virtually nonexistent for most of the journey. Hotels and restaurants in downtown Cusco have wifi without issue, with speeds that allow video calls and basic remote work.
Safety in Cusco: practical tips for travelers
Cusco is a tourist city with good infrastructure and visible police presence in the busiest areas. As with any city with high visitor traffic, there are specific risk situations worth knowing about in order to avoid them.
Safe areas and basic precautions in the city
The historic center around the Plaza de Armas, the San Blas neighborhood, and the area around the San Pedro Market are zones with heavy tourist traffic and are generally safe during the day. At night, it is best to get around by taxi or with your group, especially when moving away from the center. Peripheral neighborhoods outside the tourist area have less surveillance and are best avoided at night unless you know them well.
Theft of wallets and cell phones is the most common incident affecting tourists in Cusco. There is no need to carry your passport, large amounts of cash, or more cards than you plan to use. A photocopy of your passport or its digital version stored on your phone is sufficient for most everyday situations.
Common scams and how to avoid them
The most common scams in Cusco include fake plainclothes police officers who ask to see your documents and money, informal taxi drivers who charge rates far above normal, and people offering last-minute tours at very low prices with quality and conditions that do not match what was agreed upon.
For tours, always book with licensed agencies that have a physical office, an active tax ID (RUC), and certified operators. At Peru Sites Adventure, we operate all our circuits with official guides and our own transportation.
Frequently asked questions about preparing for a trip to Cusco

How many days before should I arrive in Cusco to acclimatize before trekking?
It is recommended to arrive at least two days before the start of the trek. Some guides even suggest spending a night in the Sacred Valley, which is at a lower altitude than Cusco, before heading up to the city. This allows for a more gradual adaptation.
Can I take coca leaves on the plane from Cusco?
Coca leaves are legal in Peru, but transporting them internationally is prohibited in almost all countries, including the United States and the European Union. They should not be included in your return luggage if your final destination is outside of Peru.
Is the tap water safe to drink in Cusco?
No. In Cusco, it is recommended to drink bottled or boiled water. Tap water can cause gastrointestinal issues in travelers not adapted to the local bacterial flora. Bottled water is available at any store at very affordable prices.
What currency should I bring for the trip?
The US dollar is the easiest foreign currency to exchange in Cusco and gets the best exchange rate. The euro is also accepted at exchange houses. The most convenient approach is to arrive with some cash and supplement with ATM withdrawals as needed.
Can you visit Machu Picchu without a prior reservation?
No. Entry to Machu Picchu requires a ticket purchased in advance through the official system. Tickets are not sold at the gate. During peak season, spots sell out weeks or months ahead, so advance booking is not optional.
How much cash should I bring for the trip?
It depends on the type of trip, but an approximate daily budget for a traveler with accommodation already paid is around 50 to 100 dollars for meals, local transportation, entrance fees, and miscellaneous expenses. Markets, public transportation, and small shops only accept cash.

