2026 Climate Averages

Weather in Cancún in September

It's a rainy period, but great for indoor activities, museums, and lower prices.

Climate Overview

September is a wet time to visit Cancún. Cancún has a Tropical climate with average yearly highs of 31°C, lows of 26°C, and approximately 23 rainy days per month.

Avg High

31°C

Avg Low

26°C

Rainy days

23days

Daylight

12.3h

Is September a good time to visit Cancún?

It's a rainy period, but great for indoor activities, museums, and lower prices.

Daylight

Sunrise

6:35 AM

Sunset

6:53 PM

Weather by Month
Monthly weather data
Month High Low Rainy days Condition
January 27°C 22°C 13 Excellent (best)
February 27°C 23°C 10 Excellent (best)
March 28°C 23°C 5 Excellent (best)
April 31°C 25°C 4 Excellent (best)
May 30°C 25°C 18 Wet
June 30°C 26°C 20 Wet
July 31°C 26°C 15 Wet
August 31°C 26°C 16 Wet
September 31°C 26°C 23 Wet
October 29°C 24°C 26 Wet
November 28°C 24°C 27 Wet
December 26°C 21°C 14 Excellent (best)

Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025

What to Pack for September

Humidity-wicking clothes, insect repellent, waterproof bag, and rain poncho.

Climate: Tropical
Travel Context Expect humidity and afternoon showers—plan flexible days.

Planning a trip to Cancún?

Common Questions

Is September a good time to visit Cancún? +

September is typically Wet for visiting Cancún, with average highs of 31°C and around 23 rainy days.

What should I pack for Cancún in September? +

With highs of 31°C and lows of 26°C in {month}, we recommend: Humidity-wicking clothes, insect repellent, waterproof bag, and rain poncho.

Does it rain a lot in Cancún in September? +

Cancún typically sees around 23 rainy days in September.

How many hours of daylight are there in Cancún in September? +

In September, Cancún gets approximately 12.3 hours of daylight per day.

Is September peak season in Cancún? +

No, September is not peak season in Cancún. Expect better value on accommodation and fewer tourists.

What is the best month to visit Cancún? +

The best months to visit Cancún are December, January, February, March, April, when the weather is optimal for sightseeing.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: America/Cancun)

Last Updated: January 2026

More Cancún Guides

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Overview

Complete travel guide for Cancún: top things to do, itineraries, and typical costs.

Read Full Guide

September

31° / 26°
View Full Destination Guide