Temperatures in Cancun and the Mexican Caribbean in December
When visiting Cancun and the Mexican Caribbean you'll very likely enjoy delightful weather regardless of how you time your visit. In December, the temperature doesn't fluctuate much during the course of the day.
The daily high temperature averages degrees dropping to degrees overnight.
As indicated above, during the first part of the month the low temperature averages degrees and the high averages degrees. If you visit during the middle of the month the daily low is typically around degrees while the daily high average around degrees. Over the last part of December the lowest temperature reading averages degrees and the high temperature averages degrees. To find out more about temperatures in Cancun and the Mexican Caribbean during December, browse the table above.