Is Water Safe to Drink in Peru? Complete Guide with Everything You Need to Know

Peru is a world-renowned travel destination, but one of the most common questions among visitors is whether the drinking water is safe.

In general, it is not recommended to drink tap water in most parts of the country, including major cities such as Lima, Cusco, and Arequipa. Although the water is usually treated, the distribution systems in many areas are old or deteriorated, which can pose a risk of bacterial or chemical contamination.

It’s also important to note that Cusco is located at 3,400 meters above sea level, so staying hydrated is essential to prevent altitude sickness. For this reason, it is strongly recommended to drink only bottled, boiled, or purified water. 

Many tourist establishments use filtered or bottled water for cooking and serving food, but it’s always best to ask before consuming water or raw foods like salads.

If you start feeling unwell during your trip, watch out for common symptoms caused by unsafe water consumption: stomach pain, nausea or vomiting, diarrhea, and mild fever. In such cases, stay hydrated, avoid heavy or undercooked foods until you recover, and consult a local doctor if symptoms persist. 

Why isn’t it safe?

• Old distribution systems: Although water is treated, pipes may become contaminated with bacteria, heavy metals, or sediment.
  
• Inadequate chlorination: Only a portion of the population receives water with proper disinfection levels.
  
• Possible parasites and microorganisms: There is a risk of gastrointestinal illnesses from giardia, amoebas, or other common regional parasites.

What safe options do you have as a traveler?

• Bottled water: The safest and most widely available option. Make sure the bottle is sealed.
  
• Boil the water: Boiling for 1–3 minutes kills most pathogens.
  
• Use filters or purification tablets: Ideal if you're traveling to rural areas or hiking.
  
• Avoid ice: Unless you’re sure it’s made from purified water.

What about hotels and restaurants?

Many tourist hotels and restaurants use filtered or bottled water for cooking and serving. However, it’s always best to ask before consuming water or raw foods like salads. Along the route to Machu Picchu, be cautious with water consumption. In Cusco, Aguas Calientes, and other stops along the way, drinking tap water is not recommended. Although the water is treated, the condition of pipes and possible contaminants require additional treatment.

To avoid health issues such as stomach infections, only consume bottled, purified, or previously boiled water. Many hotels and restaurants offer safe water to refill reusable bottles or canteens, which also helps reduce plastic use.

Since Machu Picchu is in a humid area and hiking can be physically demanding, staying well hydrated is essential. Carrying your own bottle of safe water is a simple yet vital step to ensure a healthy experience.

Feeling Sick While Traveling to Machu Picchu? Here’s What to Know:

Common symptoms from drinking unsafe water: stomach pain, nausea or vomiting, diarrhea, mild fever.

What to do: Rehydrate with safe water (bottled or oral rehydration salts), avoid heavy or undercooked meals until you feel better, rest, and avoid physical exertion if you have fever or dizziness. Seek medical attention if symptoms persist for more than 24 hours or worsen. Health centers and pharmacies are available in both Aguas Calientes and Cusco. It’s advisable to carry a travel kit with anti-diarrheal pills, rehydration salts, and paracetamol.

To ensure a safe and healthy stay, all travelers are advised to use safe water sources and follow local guidelines. Prevention is key to fully enjoying your experience in Peru.