Cozumel weather in January
January in Cozumel: warm, a little rain, with clean air — an excellent time to visit.
#7 of 12 months in Cozumel · #228 of 897 destinations to visit in January · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Cozumel in January
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Cozumel climate normals — January
| Daytime high | 26°C / 79°F | 🌤 warm |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Rainfall | 65 mm / 2.5 in | 🌦 some rain |
| Rainy days | 14 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 20°C / 67°F | |
| Sunshine | 9.7 h/day | |
| Daylight | 11 h | |
| Wind | 27 km/h / 17 mph | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cozumel in January — FAQ
- Is January a good time to visit Cozumel?
- January in Cozumel: warm, a little rain, with clean air — an excellent time to visit. It ranks #7 of 12 months for Cozumel on SeasonMap's comfort score (83/100).
- What is the weather like in Cozumel in January?
- In January, Cozumel averages a daily high of 25.9°C and a low of 24.1°C, with about 64.5 mm of rain over roughly 14.2 rainy days.
- What is the air quality in Cozumel in January?
- Cozumel has a mean US Air Quality Index of about 45 in January.