What is the weather like in Mexico City in September?

Expect temperatures between 12°C and 21°C with 50% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Mexico City in September?

Mexico City in September scores 67/100 based on 30 years of climate data. Recommended for planning your trip.

Who should visit Mexico City in September?

September in Mexico City is ideal for: Cultural tourists, Business travelers.

Mexico City Weather in September | 30-Year Forecast

Avg High

21°C

Hottest around day 20

Avg Low

12°C

Coolest around day 30

Rainy Days

30days

50% avg rain chance

Sunshine

8hrs/day

Autumn season

Essential Travel Info for Mexico City

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

MXN

$ Mexican peso

Language

Spanish

Driving

Right side

Connect

If someone is calling you the country co...

Safety

Travel Precautions

GPI: 2.612

Travel Intelligence

Exclusive flight analytics & health data for Mexico City

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Well Connected

70/ 100

Traffic Index

Popular destination

Peak Daily Arrivals

slots per day

Peak

May

Low

Jun

Monthly Traffic Distribution

417

Jan

394

Feb

393

Mar

453

Apr

454

May

138

Jun

419

Jul

413

Aug

368

Sep

398

Oct

398

Nov

284

Dec

Traffic Level

Low Season

Key Connections

Monterrey General Mariano Escobedo (MTY)

Cancún (CUN)

Guadalajara Don Miguel Hidalgo Y Costilla (GDL)

Tijuana General Abelardo L. Rodríguez (TIJ)

Mérida Licenciado Manuel Crescencio Rejon Int (MID)

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

There iselevated chikungunya riskin Mexico.Chikungunya vaccinationmay be considered for people traveling or moving to this location if they are planning to stay for an extended period of time (for example, 6 months or more).

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Mexico.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 Mexico. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Mexico.

Malaria

CDC recommends that travelers going to certain areas of Mexico 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 areasCampeche, Chiapas, and the southern part of Chihuahua stateRare in the states of Oaxaca, Sinaloa, Sonora, and TabascoNo malaria transmission along the U.S.–Mexico borderDrug resistanceNoneSpeciesP. vivax(100%)Recommended chemoprophylaxisCampeche, Chiapas, and the southern part of Chihuahua state: Atovaquone-proguanil, chloroquine, doxycycline, mefloquine, primaquine5, tafenoquine2All other areas with malaria transmission: 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.

+3 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Mexico City?

👍Recommended for planning your trip(67/100)

Short Answer

Monsoon conditions shape Mexico City's September: expect 50% daily rain chance. Mornings often clear before afternoon showers - early starts recommended.

Decision Factors

Vaccinations required

Yellow Fever

Frequent rainfall expected

50% chance of rain - pack waterproofs

Ideal temperature range

21.4°C - perfect for sightseeing and outdoor activities

Near active volcano: Popocatépetl

Medium volcanic risk

Health precautions needed

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

High altitude destination

2230m elevation - allow time for acclimatization

Good For

🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

👴
Elderly travelers
79% humidity creates difficult conditions
📸
Photographers
78% cloud cover limits natural light opportunities

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Mexico City in September averages 21°C with 50% precipitation probability."

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

Frequently Asked Questions: Mexico City in September

What are the temperatures in Mexico City in September?

Daytime highs average 21°C, nights drop to 12°C. Temperatures remain fairly consistent.

How many rainy days in Mexico City in September?

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

What to wear in Mexico City in September?

Comfortable casual wear with a light jacket for evenings.

Is September peak season in Mexico City?

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

Mexico City Weather in September

Mexico City September Weather Calendar