Cancún weather in September (Quintana Roo, Mexico)

Planning a trip to Cancún in September? This guide provides all the details you need.

In September, Cancún generally has very high temperatures and heavy rainfall. Throughout the daytime, temperatures often hover around 30°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 26°C.

While these temperatures are typical, some days might be even hotter. Always be prepared for the unexpected spikes in warmth. Dressing in lightweight and breathable outfits will help you stay cool. Don't forget to stay hydrated and wear sun protection to handle the heat better.

Cancún in September usually receives heavy rainfall, averaging around 192 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 14 days of the month will see rainfall.

If your ideal day consists of dry skies and moderate temperatures January, February, March, April, November and December generally stand out with the best circumstances. While October tends to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Cancún climate page with graphs.

 

Cancún, monthly averages in September

Min TemperatureMin Temperature 26°C  
Max TemperatureMax Temperature 30°C  
Water TemperatureWater Temperature 29°C  
Chance of RainChance of Rain 48%  
PrecipitationPrecipitation 192 mm  
Rainy daysRainy days 14 days  

Where to go in Mexico in September

Find out more about the weather in Mexico in September and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Cancún in September?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. With a water temperature of around 29°C this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Cancún.

Our site offers climate and forecast data for every country in the world. Are you going to Mexico? On this website you can find historical weather averages for many cities in Mexico. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.