What is the weather like in Guanajuato in September?

Expect temperatures between 14°C and 24°C with 37% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Guanajuato in September?

Guanajuato in September scores 65/100 based on 30 years of climate data. Solid choice for most travelers.

Who should visit Guanajuato in September?

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

Guanajuato Weather in September | 30-Year Forecast

Avg High

24°C

Hottest around day 23

Avg Low

14°C

Coolest around day 30

Rainy Days

25days

37% avg rain chance

Sunshine

8hrs/day

Autumn season

Essential Travel Info for Guanajuato

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

MXN

$ Mexican peso

Language

Spanish

Driving

Right side

Safety

Travel Precautions

GPI: 2.612

Travel Intelligence

Exclusive flight analytics & health data for Guanajuato

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote

15/ 100

Traffic Index

Off the beaten path

Peak Daily Arrivals

slots per day

Peak

Jan

Low

Jul

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

Monterrey General Mariano Escobedo (MTY)

Tijuana General Abelardo L. Rodríguez (TIJ)

Dallas-Fort Worth (DFW)

Houston George Bush (IAH)

Cancún (CUN)

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 Guanajuato?

👍Solid choice for most travelers(65/100)

Short Answer

Popular September in Guanajuato offers 24°C and 37% rain chance - excellent conditions that attract maximum visitors. Book 3-6 months ahead for best rates.

Decision Factors

Vaccinations required

Yellow Fever

Peak tourist season

89% of annual peak - expect crowds and high prices

Ideal temperature range

23.9°C - perfect for sightseeing and outdoor activities

Health precautions needed

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

High altitude destination

2023m elevation - allow time for acclimatization

Plenty of sunshine

10.3h of sunshine daily

Good For

👴
Elderly travelers
Comfortable 23.9°C temperature range with manageable humidity
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather
🌡️
Heat-sensitive visitors
Manageable 23.9°C without oppressive humidity

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Guanajuato in September averages 24°C with 37% precipitation probability."

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

Frequently Asked Questions: Guanajuato in September

What are the temperatures in Guanajuato in September?

Daytime highs average 24°C, nights drop to 14°C. Temperatures remain fairly consistent.

How many rainy days in Guanajuato in September?

Expect around 25 days with measurable rainfall. An umbrella is advisable.

What to wear in Guanajuato in September?

Comfortable casual wear with a light jacket for evenings.

Is September peak season in Guanajuato?

This is shoulder season—moderate prices and manageable crowds.

Guanajuato Weather in September

Guanajuato September Weather Calendar