What is the weather like in San Miguel de Allende in September?

Expect temperatures between 14°C and 24°C with 33% average rain probability and about 8 hours of sunshine daily.

What is the weather like in San Miguel de Allende in September?

San Miguel de Allende in September scores 65/100 based on 30 years of climate data. Solid choice for most travelers.

Who should visit San Miguel de Allende in September?

September in San Miguel de Allende is ideal for: Cultural tourists, Business travelers.

San Miguel de Allende Weather in September | 30-Year Forecast

Avg High

24°C

Hottest around day 21

Avg Low

14°C

Coolest around day 30

Rainy Days

23days

33% avg rain chance

Sunshine

8hrs/day

Autumn season

San Miguel de Allende September Weather Calendar

Click any day to see detailed weather information

Day 1

Cloudy

24°C40%

Day 2

Rainy

24°C42%

Day 3

Rainy

24°C44%

Day 4

Cloudy

24°C40%

Day 5

Rainy

24°C41%

Day 6

Cloudy

24°C40%

Day 7

Cloudy

24°C40%

Day 8

Cloudy

24°C38%

Day 9

Cloudy

24°C38%

Day 10

Cloudy

24°C39%

Day 11

Cloudy

24°C38%

Day 12

Cloudy

24°C37%

Day 13

Cloudy

24°C33%

Day 14

Cloudy

24°C32%

Day 15

Cloudy

24°C35%

Day 16

Cloudy

24°C36%

Day 17

Cloudy

24°C37%

Day 18

Cloudy

24°C38%

Day 19

Cloudy

25°C38%

Day 20

Cloudy

25°C31%

Day 21

Cloudy

25°C25%

Day 22

Cloudy

25°C22%

Day 23

Cloudy

25°C21%

Day 24

Nice

25°C20%

Day 25

Cloudy

25°C22%

Day 26

Cloudy

24°C25%

Day 27

Cloudy

24°C28%

Day 28

Cloudy

24°C29%

Day 29

Cloudy

24°C27%

Day 30

Cloudy

24°C23%

Essential Travel Info for San Miguel de Allende

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

MXN

$ Mexican peso

Language

Spanish

Driving

Right side

Connect

Additionally restaurants and cafés now o...

Safety

Travel Precautions

GPI: 2.612

Travel Intelligence

Exclusive flight analytics & health data for San Miguel de Allende

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote

10/ 100

Traffic Index

Off the beaten path

Peak Daily Arrivals

slots per day

Peak

Jun

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)

Houston George Bush (IAH)

Dallas-Fort Worth (DFW)

Cancún (CUN)

Tijuana General Abelardo L. Rodríguez (TIJ)

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 San Miguel de Allende?

👍Solid choice for most travelers(65/100)

Short Answer

San Miguel de Allende's September delivers on its reputation: 24°C, 33% rain, 10h sunshine. The trade-off? Peak crowds and prices at 88% capacity.

Decision Factors

Vaccinations required

Yellow Fever

Peak tourist season

88% of annual peak - expect crowds and high prices

Ideal temperature range

24.2°C - perfect for sightseeing and outdoor activities

Health precautions needed

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

Plenty of sunshine

10h of sunshine daily

Good For

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

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
75% humidity creates difficult conditions

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,San Miguel de Allende in September averages 24°C with 33% precipitation probability."

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

Frequently Asked Questions: San Miguel de Allende in September

What are the temperatures in San Miguel de Allende in September?

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

How many rainy days in San Miguel de Allende in September?

Expect around 23 days with measurable rainfall. An umbrella is advisable.

What to wear in San Miguel de Allende in September?

Comfortable casual wear with a light jacket for evenings.

Is September peak season in San Miguel de Allende?

This is shoulder season—moderate prices and manageable crowds.

San Miguel de Allende Weather in September

San Miguel de Allende September Weather Calendar

Essential Travel Info for San Miguel de Allende

Travel Intelligence

Smart Flight Estimator

Flight Connectivity Analysis

Monthly Traffic Distribution

Key Connections

Health & Safety Advisory

COVID-19

Chikungunya

Hepatitis A

Hepatitis B

Malaria

Measles

Decision Factors

Good For

Who Should Avoid

Related Guides

Frequently Asked Questions: San Miguel de Allende in September

What are the temperatures in San Miguel de Allende in September?

How many rainy days in San Miguel de Allende in September?

What to wear in San Miguel de Allende in September?

Is September peak season in San Miguel de Allende?