The temperatures in Cancun during September are extremely high, between 27°C and hot as 31°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Cancun. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Cancun in September 2025.
If you’re planning to visit Cancun in the near future, we highly recommend that you review the 14 day weather forecast for Cancun before you arrive.
Temperatures
31° / 27°
Rainy Days
13
Snowy Days
0
Dry Days
17
Rainfall
214
mm
Sun Hours
11.3
Hrs
