Cancun and the Mexican Caribbean is known for its mild climate and beautiful scenery. During May, the temperature doesn't fluctuate much during the course of the day.
Temperatures will peak at about degrees dropping to degrees overnight.
This data indicates that during the first third of the month the low temperature averages degrees and the high averages degrees. During the middle of the month the daily low is typically around degrees while the daily high average around degrees. Over the last third of May the lowest temperature reading averages degrees and the high temperature averages degrees. To find out more about May temperatures in Cancun and the Mexican Caribbean, browse the table above.