Cancún in August
In August, Cancún averages 34°C (93°F) during the day and 26°C (79°F) at night, with around 9 days of rain (116 mm total).
Off-peakConditions are very hot — early-morning and evening sightseeing recommended. Occasional showers are likely but won't dominate.
It's peak hurricane season in Cancún during August. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How August compares to the rest of the year in Cancún
August is one of the warmest months in Cancún (2nd of 12) and moderately rainy compared to the rest of the year (4th of 12). Daytime temperature runs 3°C above the annual average (31°C). August runs roughly the same as July (34°C) and cools 1°C in September (33°C).
August sunrise & sunset in Cancún
Times shown for Cancún local time (America/Cancun), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Cancún — August
Golden-hour and blue-hour windows for the 15th of August, in Cancún's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Cancún in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (Off-peak) and Cancún's popularity.
Crowds & pricing — August in Cancún
This is off-peak for Cancún — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.
Why this tier: challenging tourism weather Northern Hemisphere summer holidays peak hazard season (1 active)
Sun & mosquito risk — August in Cancún
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in Cancún — August
Across the year Cancún's sea swings from 26.7°C (February) to 29.5°C (September) — August sits at 28.8°C.
Cancún in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 28°C / 82°F | 20°C / 68°F | 89 mm | 8 | — |
| February | 29°C / 84°F | 20°C / 68°F | 56 mm | 6 | — |
| March | 30°C / 86°F | 22°C / 72°F | 41 mm | 4 | — |
| April | 32°C / 90°F | 23°C / 73°F | 39 mm | 4 | — |
| May | 33°C / 91°F | 25°C / 77°F | 109 mm | 7 | — |
| June | 33°C / 91°F | 26°C / 79°F | 165 mm | 9 | — |
| July | 34°C / 93°F | 26°C / 79°F | 89 mm | 8 | — |
| August | 34°C / 93°F | 26°C / 79°F | 116 mm | 9 | — |
| September | 33°C / 91°F | 25°C / 77°F | 218 mm | 13 | — |
| October | 31°C / 88°F | 24°C / 75°F | 196 mm | 11 | — |
| November | 29°C / 84°F | 22°C / 72°F | 102 mm | 8 | — |
| December | 28°C / 82°F | 21°C / 70°F | 102 mm | 9 | — |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Cancún in August →
Frequently asked questions
How hot is Cancún in August?
In August, Cancún averages a high of 34°C (93°F) and a low of 26°C (79°F) — generally hot.
Does it rain a lot in Cancún in August?
August sees occasional rain in Cancún, with about 9 rainy days on average.
Is August a good time to visit Cancún?
August is hot. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Cancún in August?
Pack lightweight, breathable clothing, sunglasses and sunscreen. See the full August packing list for Cancún for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.