What is the weather like in Cancún in August?

Expect temperatures between 26°C and 31°C with 42% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Cancún in August?

Cancún in August scores 51/100 based on 30 years of climate data. Good option with minor considerations.

Who should visit Cancún in August?

August in Cancún is ideal for: Business travelers.

Cancún Weather in August | 30-Year Forecast

Avg High

31°C

Hottest around day 4

Avg Low

26°C

Coolest around day 21

Rainy Days

31days

42% avg rain chance

Sunshine

8hrs/day

Summer season

Sea Temperature in August

Caribbean Sea(Mar Caribe)

28.9°C

Monthly Average

Water Feel

🌴Tropical

Perfect for swimming and water sports

Swim Rating

✅Excellent for swimming

Based on average sea surface temperature

Body of Water

Caribbean Sea

Mar Caribe

Cancún coastline

Essential Travel Info for Cancún

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

MXN

$ Mexican peso

Language

Spanish

Driving

Right side

Connect

High-speed wireless internet (5G) is wid...

Safety

Travel Precautions

GPI: 2.612

Travel Intelligence

Exclusive flight analytics & health data for Cancún

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate

59/ 100

Traffic Index

Balanced traffic

Peak Daily Arrivals

slots per day

Peak

Mar

Low

Sep

Monthly Traffic Distribution

258

Jan

266

Feb

293

Mar

239

Apr

233

May

254

Jun

249

Jul

227

Aug

Sep

193

Oct

268

Nov

243

Dec

Traffic Level

Low Season

Key Connections

Mexico City Licenciado Benito Juarez (MEX)

Monterrey General Mariano Escobedo (MTY)

Toronto Pearson (YYZ)

Dallas-Fort Worth (DFW)

Guadalajara Don Miguel Hidalgo Y Costilla (GDL)

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 August a Good Time to Visit Cancún?

👌Good option with minor considerations(51/100)

Short Answer

Tropical storm season is active in Cancún during August. Average conditions (31°C, 42% rain) can be interrupted by severe weather. Monitor forecasts closely.

Decision Factors

Atlantic Hurricane season active

Atlantic zone - expect potential atlantic hurricane activity

Oppressive heat and humidity

30.5°C with 81% humidity - challenging conditions

Vaccinations required

Yellow Fever

Feels significantly hotter than 30.5°C

Heat index: 40°C due to 81% humidity

Warm tropical seas

28.9°C sea temperature - Hot Soup

Health precautions needed

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

Good For

💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

👨‍👩‍👧‍👦
Families with children
40°C heat index dangerous for children
👴
Elderly travelers
Heat index of 40°C poses health risks
💼
Business travelers
Storm season may cause flight disruptions
🌡️
Heat-sensitive visitors
40°C feels-like temperature creates discomfort

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Cancún in August averages 31°C with 42% precipitation probability."

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

Frequently Asked Questions: Cancún in August

What are the temperatures in Cancún in August?

Daytime highs average 31°C, nights drop to 26°C. Temperatures remain fairly consistent.

How many rainy days in Cancún in August?

Expect around 31 days with measurable rainfall. An umbrella is advisable.

What to wear in Cancún in August?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is August peak season in Cancún?

This is shoulder season—moderate prices and manageable crowds.

Cancún Weather in August