Weather in Cancun in August 2025
- August is usually the hottest month of the year in Cancun;
Average weather
Average temperature in Cancun in August
Going from a maximum of +33°C during the day to a minimum of +26°C during the night, the temperature in August averages around +31°C.
The average maximum temperature goes down 43% by the end of the month, compared with the beginning of the month, from +33°C to +30°C.
Is Cancun warm or cold in August?
Cancun is typically warm in August.
Maximum temperatures go up compared to the previous month from +29°C to +30°C. The minimum temperature also goes up from +26°C to +26°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is the hottest month in Cancun, here is the comparison with other months:
Water temperature in Cancun in August
Water in Cancun in August is Very warm. It varies from +28°C to +31°C, with an average of +29°C. This is almost similar to the air temperature, which averages +30°C.
The water temperature in August is one of the warmest of the entire year:
Can you swim in Cancun in August?
Climate in Cancun in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +29°C | +30°C | +29°C | ||||
| Min. temperature | ||||||
| +22°C | +22°C | +22°C | ||||
| Max. temperature | ||||||
| +33°C | +36°C | +33°C | ||||
| Rainfall | ||||||
| 103 mm | 123 mm | 170 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +29°C | +29°C | +29°C | ||||
| Humidity | ||||||
| 80% | 80% | 82% | ||||
| Air pressure | ||||||
| 1015 HPa | 1014 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 1 | 0 | 0 | ||||
| Cloudy days | ||||||
| 4 | 3 | 2 | ||||
| Rainy days | ||||||
| 25 | 26 | 26 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +29°C to +30°C during the day. Prepare for more rain. Average rainfall goes from 103 mm to 123 mm. Humidity levels don’t change as the month goes on, averaging around 80%. The average wind speed doesn’t change much during August, staying around 2 m/s. The days becoming less sunny, going from 1 sunny days in July to 0 in August.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Cancun is gradually increasing during August, going from 3 m/s to 4 m/s over the course of the month.
Rain
How was the weather last August in Cancun?
Climate Change over Years
The climate in Cancun in August has not changed much over the last 43 years.
The average temperature was the lowest in 1984 (+27°C) and the highest in 2019 (+30°C). The driest year was 2004 with only 635 mm of rainfall, and the wettest year was 2013 with 2270 mm.
FAQ
Is August a good time to visit Cancun?
Can you sunbathe in Cancun in August?
Can you swim in Cancun in August?
Is Cancun rainy in August?
Is it sunny in Cancun in August?
Other cities in Mexico
Monthly weather in Cancun
Source of the data
For this page, we’ve looked at the typical weather in Cancun, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.