Weather in Cancún in August
August in Cancún is warm with average temperatures around 28.6°C (83.5°F). Expect significant rainfall with 114mm across approximately 21 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
30.5°C
86.9°F
Low
26.7°C
80.1°F
Precipitation
114 mm
4.5 inches
~21 rainy days
Conditions
Humidity
80%
Comparison to Adjacent Months
August is 25mm wetter than July.
August is 51mm drier than September.