Weather in Cozumel in August 2025
Average weather
Average temperature in Cozumel in August
The expected average maximum temperature in August is +91°F with a maximum of +93°F and a minimum of +79°F.
The average maximum temperature goes down 25% by the end of the month, compared with the beginning of the month, from +91°F to +88°F.
Is Cozumel warm or cold in August?
Cozumel is typically warm in August.
Maximum temperatures go up compared to the previous month from +84°F to +84°F. The minimum temperature also goes up from +81°F to +81°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is one of the warmest months in Cozumel, here is the comparison with other months:
Climate in Cozumel in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +84°F | +84°F | +84°F | ||||
| Min. temperature | ||||||
| +68°F | +68°F | +68°F | ||||
| Max. temperature | ||||||
| +97°F | +93°F | +95°F | ||||
| Rainfall | ||||||
| 108 mm | 122 mm | 188 mm | ||||
| Wind | ||||||
| 4 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 82% | 82% | 83% | ||||
| Air pressure | ||||||
| 1014 HPa | 1013 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 1 | ||||
| Cloudy days | ||||||
| 5 | 4 | 2 | ||||
| Rainy days | ||||||
| 23 | 24 | 26 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. The temperature levels stay the same in the area of +84°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 108 mm to 122 mm. Humidity levels don’t change as the month goes on, averaging around 82%. Winds are calmer in comparison to July, going down from 4 m/s to 3 m/s on average. The amount of sunny days stay about the same, averaging 2 sunny days during the month.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 3 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 Cozumel is gradually increasing during August, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last August in Cozumel?
Climate Change Over the Years
The climate in Cozumel in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1984 (+80°F) and the highest in 2023 (+87°F). The driest year was 2004 with only 723 mm of rainfall, and the wettest year was 1983 with 2095 mm.
FAQ
Is August a good time to visit Cozumel?
Can you sunbathe in Cozumel in August?
Is Cozumel rainy in August?
Is it sunny in Cozumel in August?
Other cities in Mexico
Monthly weather in Cozumel
Source of the data
For this page, we’ve looked at the typical weather in Cozumel, 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.
