Hot and humid weather conditions characterize the month of July in Cancun, Cozumel, and the Mexican Caribbean. Temperatures reach their peak between July and August so vacationers should be aware of the potential for very warm temperatures, not uncommon to be in the mid-90s. Cool breezes on the coast and brief afternoon showers give a much appreciated break from the heat.
Typical Weather in July
During July the temperatures in Cancun and the Mexican Caribbean typically vary between a daily high of about 90.0 degrees and a daily low of approximately 78.0 degrees
| Monthly Averages | | High | Low | Rainfall
(inches) | No. of Days
with Rain |
| 90.0° F |
78.0° F |
N.A. |
4.0 |
|
On a typical July day, during the early morning hours you will probably find the temperature will be around 77.7 degrees.
Temperatures in Cancun and the Mexican Caribbean typically rise during the day, to an average of 88.6 degrees in the early afternoon.
By early evening, temperatures in Cancun and the Mexican Caribbean generally decline to around 84.0 degrees.
Overall, temperatures in Cancun and the Mexican Caribbean during July average around 84.2 degrees.
| Early Morning | Late Morning | Early Afternoon | Late Afternoon | Early Evening | Overall |
| 77.7° F |
85.9° F |
88.6° F |
88.1° F |
84.0° F |
84.2° F |
|
Rain
Rain is least likely to occur in Cancun and the Mexican Caribbean during July around 3:00 AM, and it is most likely to occur around 12:00 PM (noon).
As shown below, if a thunderstorm occurs in July, it is most likely to occur around 12:00 PM (noon).
| Percent Frequencies of Hourly Observations | | Hour | Rain
and/or
Drizzle | Thunder-
storms |
| 12:00 AM (midnight) |
0.6 % |
0 % |
| 3:00 AM |
0 % |
0 % |
| 6:00 AM |
0.9 % |
0 % |
| 9:00 AM |
1.3 % |
0 % |
| 12:00 PM (noon) |
2.5 % |
0.9 % |
| 3:00 PM |
1.6 % |
0 % |
| 6:00 PM |
1.9 % |
0.2 % |
| 9:00 PM |
2.5 % |
0 % |
| ALL |
1.7 % |
0.2 % |
|
