01Weather
Cancún weather in August
Afternoons in August average 32.2 °C (90 °F) and nights cool to 24.9 °C (77 °F). Compared with July it is 0.1 °C warmer; September is 0.6 °C cooler again.
What the averages hide
| In a typical August | Value | What it means |
|---|---|---|
| Warm afternoons (90th percentile) | 33 °C / 91 °F | one day in ten is at least this warm |
| Cool afternoons (10th percentile) | 31 °C / 88 °F | one day in ten stays below this |
| Cold nights (10th percentile) | 23 °C / 73 °F | one night in ten is colder than this |
| Days above 30 °C (86 °F) | 29.6 | per month, average 2016–2025 |
| Nights at or below 0 °C (32 °F) | 0.0 | frost mornings per month |
| Hottest / coldest August day 2016–2025 | 34.0 °C / 22.0 °C | extremes in the ten-year record |
02Daylight
Sunrise, sunset and the length of the day
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 1 August | 06:21 | 19:26 | 13.1 h |
| 15 August | 06:26 | 19:17 | 12.9 h |
| 31 August | 06:30 | 19:04 | 12.6 h |
Daylight shrinks by about 30 minutes over the month. Times are local (America/Cancun).
03Crowds
How busy Cancún is in August
moderate The main sights are moderate in August. What drives it:
- peak heat
- hurricane risk rising
- sargassum
04Public holidays
Public holidays in August 2027
No public holidays in Mexico fall in August, so shops and museums keep normal hours all month.
05Events
What's on in Cancún in August
No major recurring events fall in August.
07Packing
What to pack for Cancún in August
- light, breathable clothing
- sun hat and sunscreen
- refillable water bottle
- a compact umbrella for occasional showers
- something for heat: 30 days a month pass 30 °C on average
08Editor's notes
What the numbers don't tell you
August is the peak of heat and humidity, with afternoons around 33 °C, hurricane risk rising and sargassum still present on some beaches. Rates are low and the resorts quieter after the first week as the US schools return. The cenotes and the Caribbean's warm water, around 30 °C, are the draw; plan ruins for early morning. Rain falls on about ten days.
The whale shark season ends in mid-September. The turtle hatchlings emerge on the beaches at night. The Mexican families leave in the final week. Daylight shrinks from thirteen hours to twelve and a half. For the wettest month and the peak of hurricane season, see September.
09Compare
Cancún month by month
| Month | High | Low | Rain days | Sun h | Crowds | Verdict |
|---|---|---|---|---|---|---|
| January | 27 °C | 20 °C | – | – | very busy | Good |
| February | 28 °C | 21 °C | – | – | very busy | Good |
| March | 29 °C | 22 °C | – | – | very busy | Good |
| April | 30 °C | 23 °C | – | – | busy | Good |
| May | 31 °C | 25 °C | – | – | moderate | Good |
| June | 31 °C | 26 °C | – | – | moderate | Good |
| July | 32 °C | 25 °C | – | – | busy | Good |
| August | 32 °C | 25 °C | – | – | moderate | Good |
| September | 32 °C | 24 °C | – | – | quiet | Good |
| October | 30 °C | 24 °C | – | – | quiet | Good |
| November | 29 °C | 22 °C | – | – | busy | Excellent |
| December | 28 °C | 21 °C | – | – | very busy | Good |
Not sure about August? See the best time to visit Cancún.
10Elsewhere
August in nearby cities
| City | High | Rain days |
|---|---|---|
| Miami in August | 33 °C | 16 |
| Orlando in August | 33 °C | 12 |
| New York City in August | 29 °C | 8 |
| Toronto in August | 27 °C | 6 |
| Las Vegas in August | 40 °C | 1 |
| Los Angeles in August | 26 °C | 0 |
11FAQ
Cancún in August: your questions
Is August a good time to visit Cancún?
August is a good month to visit Cancún. Daytime highs average 32 °C (90 °F), and hotel arrivals run above the yearly average, so the main sights are moderate.
What is the weather like in Cancún in August?
Expect hot days around 32 °C (90 °F) and nights near 25 °C (77 °F). One August in ten brings afternoons above 33 °C, and one in ten stays below 31 °C.
Does it rain a lot in Cancún in August?
August in Cancún, by the 1991–2020 station normals.
What should I wear in Cancún in August?
Pack light, breathable clothing, sun hat and sunscreen, refillable water bottle.
Is Cancún crowded in August?
The main sights are moderate in August. Main drivers: peak heat; hurricane risk rising; sargassum.
What time does it get dark in Cancún in August?
Around the middle of August the sun sets at about 19:17 and rises at 06:26, giving 12.9 hours of daylight.