Weather in Cancun and the Mexican Caribbean in August
An increase in potential for severe tropical weather and temperatures remaining near their peak signal the beginning of August in Cancun, Cozumel, and the Mexican Caribbean. Rainfall increases during this month, but vacationers should not be overly concerned as storms generally occur in the late afternoon and never last for very long.
Typical Weather in August
August temperatures in Cancun and the Mexican Caribbean range from an average low of 77.0 degrees to an average high of 90.0 degrees
| Monthly Averages | | High | Low | Rainfall
(inches) | No. of Days
with Rain |
| 90.0° F |
77.0° F |
N.A. |
4.0 |
|
During the early morning hours of an average August day in Cancun and the Mexican Caribbean, you can expect the temperature will be in the vicinity of 76.4 degrees.
In August, temperatures typically rise to around 88.9 degrees by early afternoon.
By early evening, temperatures in Cancun and the Mexican Caribbean generally decline to around 83.8 degrees.
For the month of August as a whole, temperatures in Cancun and the Mexican Caribbean average around 83.9 degrees.
| Early Morning | Late Morning | Early Afternoon | Late Afternoon | Early Evening | Overall |
| 76.4° F |
85.7° F |
88.9° F |
88.0° F |
83.8° F |
83.9° F |
|
Rain
Rain is least likely to occur in Cancun and the Mexican Caribbean during August around 3:00 AM, and it is most likely to occur around 12:00 PM (noon).
To the extent thunderstorms occur in Cancun and the Mexican Caribbean during August, they are most likely to occur around 9:00 AM, as shown in the following table.
| Percent Frequencies of Hourly Observations | | Hour | Rain
and/or
Drizzle | Thunder-
storms |
| 12:00 AM (midnight) |
1.8 % |
0 % |
| 3:00 AM |
0 % |
0 % |
| 6:00 AM |
1.5 % |
0 % |
| 9:00 AM |
2.7 % |
0.4 % |
| 12:00 PM (noon) |
3.3 % |
0.4 % |
| 3:00 PM |
2.7 % |
0 % |
| 6:00 PM |
2.1 % |
0 % |
| 9:00 PM |
1.9 % |
0.4 % |
| ALL |
2.3 % |
0.2 % |
|
