What is the weather like in Cusco in September?

Expect temperatures between 6°C and 17°C with 46% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Cusco in September?

Cusco in September scores 66/100 based on 30 years of climate data. Great time to visit - recommended.

Who should visit Cusco in September?

September in Cusco is ideal for: Cultural tourists, Business travelers, Heat-sensitive visitors.

Cusco Weather in September | 30-Year Forecast

Avg High

17°C

Hottest around day 8

Avg Low

6°C

Coolest around day 2

Rainy Days

30days

46% avg rain chance

Sunshine

8hrs/day

Autumn season

Essential Travel Info for Cusco

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

PEN

S/ Peruvian sol

Language

Aymara

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Driving

Right side

Safety

Moderate Safety

GPI: 2.091

Travel Intelligence

Exclusive flight analytics & health data for Cusco

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Low Traffic

24/ 100

Traffic Index

Quieter airport

Peak Daily Arrivals

slots per day

Peak

Jul

Low

Feb

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

Lima Jorge Chávez (LIM)

Puerto Maldonado Padre Aldamiz (PEM)

Arequipa Rodríguez Ballón (AQP)

Bogotá El Dorado (BOG)

Santiago Comodoro Arturo Merino Benítez (SCL)

Health & Safety Advisory

CDC travel health recommendations

9 Recommendations

COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Chikungunya

All travelers should take steps to prevent mosquito bites. Chikungunya vaccination is generally not recommended. Travelers who wish to consider vaccination can visit “What to consider before traveling” on thechikungunya vaccinespage to learn more.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Peru.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Peru. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Peru.

Malaria

CDC recommends that travelers going to certain areas of Peru take prescription medicine to prevent malaria. Depending on the medicine you take, you will need to start taking this medicine multiple days before your trip, as well as during and after your trip. Talk to your doctor about which malaria medication you should take.Transmission areasAll areas of the country <2,500 m (<8,200 ft) elevation east of the Andes, including the cities of Iquitos and Puerto MaldonadoRare cases in Tumbes and Piura regionsNo malaria transmission in the following areas: Lima Province; the cities of Arequipa, Ica, Moquegua, Nazca, Puno, or Tacna; the highland tourist areas (the city of Cusco, Machu Picchu, Lake Titicaca); along the central and southern Pacific CoastDrug resistanceChloroquineSpeciesP. vivax(80%)P. falciparum(20%)Recommended chemoprophylaxisAreas <2,500m (<8,200 ft) elevation east of the Andes (see map): Atovaquone-proguanil, doxycycline, mefloquine, tafenoquine2All other areas with malaria transmission (see map): No chemoprophylaxis recommended (insect bite precautions and mosquito avoidance only)4Updated April 23, 2025See footnotes

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

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Source: CDC Travelers' Health

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Is September a Good Time to Visit Cusco?

👍Great time to visit - recommended(66/100)

Short Answer

Cusco during September means embracing the rain (46%, 4mm typical). Some activities may be affected, but the lush landscapes and fewer tourists can be rewarding.

Decision Factors

Vaccinations required

Yellow Fever

Frequent rainfall expected

46% chance of rain - pack waterproofs

Health precautions needed

Be aware of: Leptospirosis, Melioidosis, Chagas disease (American Trypanosomiasis)

High altitude destination

3338m elevation - allow time for acclimatization

Plenty of sunshine

10.4h of sunshine daily

Shoulder season - balanced conditions

83% of peak - good value with moderate crowds

Good For

🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather
🌡️
Heat-sensitive visitors
Manageable 17.3°C without oppressive humidity

Who Should Avoid

Suitable for most traveler types

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Cusco in September averages 17°C with 46% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Cusco in September

What are the temperatures in Cusco in September?

Daytime highs average 17°C, nights drop to 6°C. Temperatures remain fairly consistent.

How many rainy days in Cusco in September?

Expect around 30 days with measurable rainfall. An umbrella is advisable.

What to wear in Cusco in September?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is September peak season in Cusco?

This is off-peak season. Expect lower prices and fewer crowds.

Cusco Weather in September

Cusco September Weather Calendar