August · Mexico
Best time to visit Cozumel in August Weather, crowds & prices
Weather in Cozumel in August
Average temperature 29°C, 144 mm of rain, about 29 days with 6+ hours of sunshine and 82% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
7.8/10
Ranked #6 of 12 months
- Avg temp
- 29°C
- Rainfall
- 144 mm
- Humidity
- 82%
- Days with 6h+ sun
- 29
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
August in Cozumel scores 7.8/10 for beach and coastal travel - an above-average month (#6 of 12). Expect around 29°C, 144 mm of rain, and roughly 29 days with 6+ hours of sunshine this month.
Cozumel's reefs, beach clubs and quiet east side make it the Caribbean's classic dive island.
August in Cozumel: strong conditions, 6th of 12
Days in August average 29°C (84°F) and humidity near 82% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
144 mm of rain makes this a wet month here, though with about 29 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.8/10 on the same scale — 6th of 12 months, versus 9.6/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, April is materially better in Cozumel — 1.8 points higher on the same scale.
Frequently asked
- What is the weather like in Cozumel in August?
- In August, Cozumel averages 29°C, 144 mm of rain, and about 29 days with 6+ hours of sunshine. Its climate-comfort score is 7.8/10.
- Is August a good time to visit Cozumel?
- August earns a 7.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cozumel in August?
- Expect about 144 mm of rain in August. Average humidity is 82% and there are about 29 days with 6+ hours of sunshine.
Curated in Cozumel
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Cozumel, Mexico. Live activities and tours from GetYourGuide, matched to this destination.