Weather in Cancun and the Mexican Caribbean in May
May signals the beginning of the scorching summer months in Cancun, Cozumel, and the Mexican Caribbean. Temperatures generally stay in the high-80s and low-90s, but temperatures have been known to reach the high-90s and low-100s. Sporadic showers do offer some respite from the temperatures, but May still has a relatively low amount of precipitation.
Typical Weather in May
Temperatures in Cancun and the Mexican Caribbean during May generally vary between an average high during the day of 88.0 degrees and an average low at night of 77.0 degrees
| Monthly Averages | | High | Low | Rainfall
(inches) | No. of Days
with Rain |
| 88.0° F |
77.0° F |
N.A. |
4.0 |
|
During the early morning hours of an average May day in Cancun and the Mexican Caribbean, you can expect the temperature will be in the vicinity of 76.0 degrees.
In May, temperatures typically rise to around 86.7 degrees by early afternoon.
By the early evening hours in May the temperature will generally fall to somewhere in the vicinity of 81.5 degrees.
Overall, temperatures in Cancun and the Mexican Caribbean during May average around 82.2 degrees.
| Early Morning | Late Morning | Early Afternoon | Late Afternoon | Early Evening | Overall |
| 76.0° F |
84.2° F |
86.7° F |
85.5° F |
81.5° F |
82.2° F |
|
Rain
During May, rain is most likely to occur around 9:00 PM, and least likely to occur around 9:00 AM.
To the extent thunderstorms occur in Cancun and the Mexican Caribbean during May, they are most likely to occur around 6:00 AM, as shown in the following table.
| Percent Frequencies of Hourly Observations | | Hour | Rain
and/or
Drizzle | Thunder-
storms |
| 12:00 AM (midnight) |
3.1 % |
0 % |
| 3:00 AM |
# |
# |
| 6:00 AM |
3.1 % |
0.3 % |
| 9:00 AM |
2.1 % |
0 % |
| 12:00 PM (noon) |
3.2 % |
0.2 % |
| 3:00 PM |
2.5 % |
0 % |
| 6:00 PM |
3 % |
0 % |
| 9:00 PM |
3.4 % |
0 % |
| ALL |
2.9 % |
0.1 % |
|
