Cancún weather in October
October in Cancún: sweltering, rainy, with clean air — an excellent time to visit.
#10 of 12 months in Cancún · #242 of 604 destinations to visit in October · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Cancún climate normals — October
| Daytime high | 29°C / 84°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Feels like (high) | 34°C / 93°F | |
| Rainfall | 146 mm / 5.7 in | 🌧 rainy |
| Rainy days | 20 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 11.7 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Cancún?
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Cancún in October — FAQ
- Is October a good time to visit Cancún?
- October in Cancún: sweltering, rainy, with clean air — an excellent time to visit. It ranks #10 of 12 months for Cancún on SeasonMap's comfort score (81/100).
- What is the weather like in Cancún in October?
- In October, Cancún averages a daily high of 29°C and a low of 25.8°C, with about 145.5 mm of rain over roughly 19.8 rainy days.
- What is the air quality in Cancún in October?
- Cancún has a mean US Air Quality Index of about 40 in October.