20-Year Climate Average
Cancún, Quintana Roo, Mexico Weather in December
Normal High
80°F
Normal Low
73°F
Rainy Days
~18 of the month
Chance of Rain
59%
Humidity
75%
UV index
Not available
Daylight
10.9 hours
Peak wind
11 mph
Usually good for: beaches and outdoor dining.
Based on December climate records from 2006–2025 (Open-Meteo Historical Weather Archive). These are planning averages, not a forecast. Data: Open-Meteo.com, CC BY 4.0.
Current conditions
Forecast versus the climate baseline
80°F
It currently feels like 89°F with 91% humidity, a 77°F dew point and 5 mph wind. Climate averages describe the month; this live reading is what matters for plans today.
88° / 79° · 88% rain
88° / 76° · 100% rain
86° / 76° · 92% rain
Best Months to Visit Cancún, Quintana Roo, Mexico
Ranked by historical rainy-day frequency — the driest months over the past 20 years.
Methodology
Monthly values use the 2001–2020 observation period. Temperature, precipitation, humidity or dew point, wind, UV and daylight are shown only when the selected source provides them; unavailable fields are never estimated or silently replaced. These are planning normals, not guarantees for a specific trip.
What is the weather like in Cancún, Quintana Roo, Mexico in December?
The 20-year average high in Cancún, Quintana Roo, Mexico in December is 80°F, with a low around 73°F and about 18 rainy days.