Cancun in september: average Weather, Temperature and Climate
Weather in Cancun in september 2025
The weather in Cancun in september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather UV index: 7
Weather at 6am
83°F
Partly Cloudy
45% of time
23%
22%
7%
Weather at 12pm
88°F
Clear/Sunny
37% of time
28%
20%
14%
Weather at 6pm
85°F
Clear/Sunny
36% of time
27%
19%
16%
Weather at 3am
81°F
36%
30%
26%
6%
Evolution of daily average temperature and precipitation in Cancun in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Cancun in september.
The climate of Cancun in september is tolerable
Aside from being the hottest month, September is also the wettest. Temperatures clearly exceed 33° C during the hottest hours of the day, while humidity greatly affects the quality of climate throughout September in Cancun. Thus, it is not uncommon for the mornings to become rainy ye twarm. The rest of the day however allows to spend pleasant moments.
Cancún at the Beginning of September
The first ten days of September are dominated by heat, with temperatures ranging between 29° C and 33° C. In the morning, the weather is characterized by alternating cloudy skies and moderate rains. Expect to have rainy days every other day. However, evenings are favored by the removal of humidity, when the rains gradually fade.
Cancún in the Middle of September
Despite the slight drop in temperature, the weather throughout September in Cancún continues to deteriorate. Rainfall occurs both during the day and during the night. Such still leaves a moment of thinning clouds to make the most of the day. However, this does not mean that midday is completely dry and therefore prepare to face rainy episodes at any time.
Cancún at the End of September
During the last ten days of September, the weather in Cancun throughout September is not ready to improve just yet. In addition to the already warm atmosphere, the days are dominated by the succession of light showers with very intense rains. The only moments of beautiful sun are summarized by the rare cloud thinnings.
Cancun: another month?
If you can push the dates of your trip to Cancun forward, the month of october has a better weather forecast than september. more information
September: another location in Mexico?
If you want to go to Mexico in september, there are destinations with better weather than Cancun:
In september, Bahia Tortugas, Tijuana, Bahía de los Ángeles, El Rosario de Arriba, Laguna del Rey (Coahuila) and Ciudad Juárez have perfect weather.
Furthermore, Chihuahua, Los Cabos, Aguascalientes, Mérida, Querétaro and Yucatán have good weather.
Seasonal average climate and temperature of Cancun in september
Check below seasonal norms These datas are set from the weather statements of the last years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 85°F | ||||
| Highest temperature | 88°F | ||||
| Lowest temperature | 83°F | ||||
| Highest record temperature | 94°F (2021) | ||||
| Lowest record temperature | 76°F (2013) | ||||
| Number of days at +86°F | 27 day(s) (90%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 85°F | ||||
| Lowest sea temperature | 84°F | ||||
| Highest sea temperature | 87°F | ||||
| Wind | |||||
| Wind speed | 17km/h | ||||
| Wind temperature | 83°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 8.4in | ||||
| Number of days with rainfall | 15 day(s) (49%) | ||||
| Record daily rainfall | 2in (2018) | ||||
| Other climate data | |||||
| Humidity | 84% | ||||
| Visibility | 9.34km | ||||
| Cloud cover | 30% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:34 | ||||
| Time of sunset | 18:50 | ||||
| Length of day | 12:16 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Cancun in september 2024:
79°F to 85°F
79°F to 86°F
81°F to 86°F
83°F to 88°F
83°F to 90°F
83°F to 88°F
81°F to 86°F
81°F to 85°F
83°F to 88°F
81°F to 88°F
81°F to 88°F
81°F to 88°F
81°F to 88°F
81°F to 88°F
81°F to 90°F
83°F to 88°F
83°F to 86°F
83°F to 88°F
83°F to 90°F
83°F to 86°F
81°F to 85°F
83°F to 92°F
83°F to 90°F
83°F to 85°F
77°F to 81°F
81°F to 90°F
79°F to 88°F
83°F to 92°F
83°F to 88°F
81°F to 85°F
Map: other cities in Mexico in september
Cities near Cancun:
| Isla Mujeres in september | tolerable weather |
| Isla Blanca in september | tolerable weather |
| Puerto Morelos in september | tolerable weather |
| Isla Contoy in september | tolerable weather |
| Chiquilá in september | tolerable weather |
| Holbox in september | tolerable weather |
| Playa del Carmen in september | tolerable weather |
| Riviera Maya in september | tolerable weather |
| Cozumel in september | tolerable weather |
| Puerto Aventuras in september | tolerable weather |
| El Cuyo in september | good weather |
| Akumal in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Cancun
perfect weather
good
tolerable
bad
very bad
Weather data for Cancun in september:
Weather data for Cancun for september are derived from an average of the weather forecast since 2009 in Cancun. There is a margin of error and these forecasts are to be considered as general information only. The weather in Cancun can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Cancun.