Cozumel weather in October

October in Cozumel: warm, soaked, with clean air — fine if you can take 20 rainy days.
#10 of 12 months in Cozumel · #424 of 897 destinations to visit in October · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cozumel in October
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Cozumel climate normals — October
| Daytime high | 29°C / 84°F | 🌤 warm |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Rainfall | 171 mm / 6.7 in | ⛈ soaked |
| Rainy days | 20 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 10.2 h/day | |
| Daylight | 11.7 h | |
| Wind | 23 km/h / 14 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cozumel in October — FAQ
- Is October a good time to visit Cozumel?
- October in Cozumel: warm, soaked, with clean air — fine if you can take 20 rainy days. It ranks #10 of 12 months for Cozumel on SeasonMap's comfort score (79/100).
- What is the weather like in Cozumel in October?
- In October, Cozumel averages a daily high of 28.7°C and a low of 26.6°C, with about 171.2 mm of rain over roughly 20.4 rainy days.
- What is the air quality in Cozumel in October?
- Cozumel has a mean US Air Quality Index of about 39 in October.