December · Mexico
Best time to visit Cozumel in December Weather, crowds & prices
Weather in Cozumel in December
Average temperature 26°C, 106 mm of rain, about 11 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
6.7/10
Ranked #11 of 12 months
- Avg temp
- 26°C
- Rainfall
- 106 mm
- Humidity
- 81%
- Days with 6h+ sun
- 11
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Cozumel scores 6.7/10 for beach and coastal travel - ranked #11 of 12. Expect around 26°C, 106 mm of rain, and roughly 11 days with 6+ hours of sunshine this month.
Cozumel's reefs, beach clubs and quiet east side make it the Caribbean's classic dive island.
December in Cozumel: mixed conditions, plan around the weather
With 26°C (79°F) on average, December delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
106 mm of rain signals a properly wet month, with only about 11 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 6.7/10 on the same scale — 11th of 12 months, versus 9.6/10 for the best month here.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, April is materially better in Cozumel — 2.9 points higher on the same scale.
Frequently asked
- What is the weather like in Cozumel in December?
- In December, Cozumel averages 26°C, 106 mm of rain, and about 11 days with 6+ hours of sunshine. Its climate-comfort score is 6.7/10.
- Is December a good time to visit Cozumel?
- December earns a 6.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cozumel in December?
- Expect about 106 mm of rain in December. Average humidity is 81% and there are about 11 days with 6+ hours of sunshine.
Curated in Cozumel
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Cozumel, Mexico. Live activities and tours from GetYourGuide, matched to this destination.