August · Mexico
Best time to visit Cancun in August Weather, crowds & prices
Weather in Cancun in August
Average temperature 29°C, 138 mm of rain, about 31 days with 6+ hours of sunshine and 83% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
7.9/10
Ranked #6 of 12 months
- Avg temp
- 29°C
- Rainfall
- 138 mm
- Humidity
- 83%
- Days with 6h+ sun
- 31
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
August in Cancun scores 7.9/10 for beach and coastal travel - an above-average month (#6 of 12). Expect around 29°C, 138 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Cancún’s Caribbean shores and reef excursions shine in the dry winter months from January through March.
August in Cancun: strong conditions, 6th of 12
August averages 29°C (84°F) and humidity near 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 138 mm — wet for this destination — but about 31 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 7.9/10 here, 6th of 12 months, against 9.6/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Plan for mid-season pricing, with crowds are moderate.
Flexible dates? April scores 1.7 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Cancun in August?
- In August, Cancun averages 29°C, 138 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 7.9/10.
- Is August a good time to visit Cancun?
- August earns a 7.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cancun in August?
- Expect about 138 mm of rain in August. Average humidity is 83% and there are about 31 days with 6+ hours of sunshine.
Curated in Cancun
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